25620413502 has 16 divisors (see below), whose sum is σ = 51253215120. Its totient is φ = 8538073152.

The previous prime is 25620413491. The next prime is 25620413521. The reversal of 25620413502 is 20531402652.

25620413502 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 25620413502.

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, 489177 + ... + 539012.

It is an arithmetic number, because the mean of its divisors is an integer number (3203325945).

Almost surely, 2^25620413502 is an apocalyptic number.

25620413502 is an abundant number, since it is smaller than the sum of its proper divisors (25632801618).

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

25620413502 is a wasteful number, since it uses less digits than its factorization.

25620413502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032347.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 25620413502 in words is "twenty-five billion, six hundred twenty million, four hundred thirteen thousand, five hundred two".