25398275156 has 24 divisors (see below), whose sum is σ = 47122908000. Its totient is φ = 11944204704.

The previous prime is 25398275141. The next prime is 25398275183. The reversal of 25398275156 is 65157289352.

It is a junction number, because it is equal to n+sod(n) for n = 25398275098 and 25398275107.

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, 1191551 + ... + 1212678.

It is an arithmetic number, because the mean of its divisors is an integer number (1963454500).

Almost surely, 2^25398275156 is an apocalyptic number.

It is an amenable number.

25398275156 is a deficient number, since it is larger than the sum of its proper divisors (21724632844).

25398275156 is a wasteful number, since it uses less digits than its factorization.

25398275156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404391 (or 2404389 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 53.

The spelling of 25398275156 in words is "twenty-five billion, three hundred ninety-eight million, two hundred seventy-five thousand, one hundred fifty-six".