25620402 has 16 divisors (see below), whose sum is σ = 51379200. Its totient is φ = 8517072.

The previous prime is 25620383. The next prime is 25620403. The reversal of 25620402 is 20402652.

It is not an unprimeable number, because it can be changed into a prime (25620403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3277 + ... + 7872.

It is an arithmetic number, because the mean of its divisors is an integer number (3211200).

Almost surely, 2^25620402 is an apocalyptic number.

25620402 is an abundant number, since it is smaller than the sum of its proper divisors (25758798).

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

25620402 is a wasteful number, since it uses less digits than its factorization.

25620402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11537.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 25620402 is about 5061.6600043859. The cubic root of 25620402 is about 294.8007924461.

The spelling of 25620402 in words is "twenty-five million, six hundred twenty thousand, four hundred two".