25324513000 has 64 divisors (see below), whose sum is σ = 60377587920. Its totient is φ = 9938656000.

The previous prime is 25324512991. The next prime is 25324513043. The reversal of 25324513000 is 31542352.

It can be written as a sum of positive squares in 8 ways, for example, as 7229420676 + 18095092324 = 85026^2 + 134518^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185911 + ... + 291910.

Almost surely, 2^25324513000 is an apocalyptic number.

25324513000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25324513000 is an abundant number, since it is smaller than the sum of its proper divisors (35053074920).

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

25324513000 is a wasteful number, since it uses less digits than its factorization.

25324513000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477895 (or 477881 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 25324513000 in words is "twenty-five billion, three hundred twenty-four million, five hundred thirteen thousand".