25620522 has 8 divisors (see below), whose sum is σ = 51241056. Its totient is φ = 8540172.

The previous prime is 25620509. The next prime is 25620533. The reversal of 25620522 is 22502652.

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

25620522 is an admirable number.

It is a super-2 number, since 2×25620522² = 1312822295104968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25620492 and 25620501.

It is an unprimeable number.

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, 2135038 + ... + 2135049.

It is an arithmetic number, because the mean of its divisors is an integer number (6405132).

Almost surely, 2^25620522 is an apocalyptic number.

25620522 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.

25620522 is a wasteful number, since it uses less digits than its factorization.

25620522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270092.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25620522 is about 5061.6718581907. The cubic root of 25620522 is about 294.8012527049.

The spelling of 25620522 in words is "twenty-five million, six hundred twenty thousand, five hundred twenty-two".