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25255051 = 49515101
BaseRepresentation
bin110000001010…
…1110010001011
31202112002102021
41200111302023
522431130201
62301145311
7424443613
oct140256213
952462367
1025255051
111328a548
12855b237
135303323
1434d5a43
15233cea1
hex1815c8b

25255051 has 4 divisors (see below), whose sum is σ = 25265104. Its totient is φ = 25245000.

The previous prime is 25255033. The next prime is 25255067. The reversal of 25255051 is 15055252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25255051 - 25 = 25255019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25255001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2401 + ... + 7501.

It is an arithmetic number, because the mean of its divisors is an integer number (6316276).

Almost surely, 225255051 is an apocalyptic number.

25255051 is a deficient number, since it is larger than the sum of its proper divisors (10053).

25255051 is an equidigital number, since it uses as much as digits as its factorization.

25255051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 25255051 is about 5025.4403787131. The cubic root of 25255051 is about 293.3927762052.

It can be divided in two parts, 2525 and 5051, that multiplied together give a triangular number (12753775 = T5050).

The spelling of 25255051 in words is "twenty-five million, two hundred fifty-five thousand, fifty-one".

Divisors: 1 4951 5101 25255051