25628502 has 8 divisors (see below), whose sum is σ = 51257016. Its totient is φ = 8542832.

The previous prime is 25628501. The next prime is 25628539. The reversal of 25628502 is 20582652.

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

25628502 is an admirable number.

It is a super-2 number, since 2×25628502² = 1313640229528008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25628502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25628501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135703 + ... + 2135714.

It is an arithmetic number, because the mean of its divisors is an integer number (6407127).

Almost surely, 2^25628502 is an apocalyptic number.

25628502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25628502 is a wasteful number, since it uses less digits than its factorization.

25628502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271422.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 25628502 is about 5062.4600739166. The cubic root of 25628502 is about 294.8318566844.

The spelling of 25628502 in words is "twenty-five million, six hundred twenty-eight thousand, five hundred two".