25929937252 has 24 divisors (see below), whose sum is σ = 46118673720. Its totient is φ = 12754809600.

The previous prime is 25929937237. The next prime is 25929937261. The reversal of 25929937252 is 25273992952.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1445824576 + 24484112676 = 38024^2 + 156474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25929937193 and 25929937202.

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, 140977 + ... + 267832.

It is an arithmetic number, because the mean of its divisors is an integer number (1921611405).

Almost surely, 2^25929937252 is an apocalyptic number.

It is an amenable number.

25929937252 is a deficient number, since it is larger than the sum of its proper divisors (20188736468).

25929937252 is a wasteful number, since it uses less digits than its factorization.

25929937252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409071 (or 409069 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 55.

The spelling of 25929937252 in words is "twenty-five billion, nine hundred twenty-nine million, nine hundred thirty-seven thousand, two hundred fifty-two".