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525321085 = 5509206413
BaseRepresentation
bin11111010011111…
…100001101111101
31100121111002001111
4133103330031331
52033440233320
6124043242021
716006104232
oct3723741575
91317432044
10525321085
1124a591563
12127b19311
1384aac4a3
144daa7789
15311baa5a
hex1f4fc37d

525321085 has 8 divisors (see below), whose sum is σ = 631626840. Its totient is φ = 419429184.

The previous prime is 525321059. The next prime is 525321091. The reversal of 525321085 is 580123525.

It can be written as a sum of positive squares in 4 ways, for example, as 55905529 + 469415556 = 7477^2 + 21666^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525321085 - 25 = 525321053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100662 + ... + 105751.

It is an arithmetic number, because the mean of its divisors is an integer number (78953355).

Almost surely, 2525321085 is an apocalyptic number.

It is an amenable number.

525321085 is a deficient number, since it is larger than the sum of its proper divisors (106305755).

525321085 is a wasteful number, since it uses less digits than its factorization.

525321085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206927.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 525321085 is about 22919.8840529353. The cubic root of 525321085 is about 806.8787490953.

The spelling of 525321085 in words is "five hundred twenty-five million, three hundred twenty-one thousand, eighty-five".

Divisors: 1 5 509 2545 206413 1032065 105064217 525321085