25203397092 has 48 divisors (see below), whose sum is σ = 59608570560. Its totient is φ = 8287322112.

The previous prime is 25203397091. The next prime is 25203397103. The reversal of 25203397092 is 29079330252.

It is a super-2 number, since 2×25203397092² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25203397091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322084 + ... + 392612.

It is an arithmetic number, because the mean of its divisors is an integer number (1241845220).

Almost surely, 2^25203397092 is an apocalyptic number.

It is an amenable number.

25203397092 is an abundant number, since it is smaller than the sum of its proper divisors (34405173468).

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

25203397092 is a wasteful number, since it uses less digits than its factorization.

25203397092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70940 (or 70938 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 42.

The spelling of 25203397092 in words is "twenty-five billion, two hundred three million, three hundred ninety-seven thousand, ninety-two".