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525485871 = 32391114929
BaseRepresentation
bin11111010100100…
…100011100101111
31100121210110002200
4133110210130233
52034011021441
6124050552543
716010361531
oct3724443457
91317713080
10525485871
1124a694349
12127b98753
1384b394b1
144db0b851
15311ee7b6
hex1f52472f

525485871 has 12 divisors (see below), whose sum is σ = 759280080. Its totient is φ = 350210880.

The previous prime is 525485837. The next prime is 525485879. The reversal of 525485871 is 178584525.

525485871 is a `hidden beast` number, since 5 + 25 + 48 + 587 + 1 = 666.

It is not a de Polignac number, because 525485871 - 210 = 525484847 is a prime.

It is a super-2 number, since 2×5254858712 = 552270801241257282, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525485879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27735 + ... + 42663.

It is an arithmetic number, because the mean of its divisors is an integer number (63273340).

Almost surely, 2525485871 is an apocalyptic number.

525485871 is a deficient number, since it is larger than the sum of its proper divisors (233794209).

525485871 is a wasteful number, since it uses less digits than its factorization.

525485871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18846 (or 18843 counting only the distinct ones).

The product of its digits is 448000, while the sum is 45.

The square root of 525485871 is about 22923.4785972810. The cubic root of 525485871 is about 806.9631091975.

It can be divided in two parts, 5254 and 85871, that added together give a cube (91125 = 453).

The spelling of 525485871 in words is "five hundred twenty-five million, four hundred eighty-five thousand, eight hundred seventy-one".

Divisors: 1 3 9 3911 11733 14929 35199 44787 134361 58387319 175161957 525485871