25437013000 has 64 divisors (see below), whose sum is σ = 68025859200. Its totient is φ = 8721259200.

The previous prime is 25437012971. The next prime is 25437013033. The reversal of 25437013000 is 31073452.

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, 1809930 + ... + 1823929.

It is an arithmetic number, because the mean of its divisors is an integer number (1062904050).

Almost surely, 2^25437013000 is an apocalyptic number.

25437013000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25437013000 is an abundant number, since it is smaller than the sum of its proper divisors (42588846200).

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

25437013000 is a wasteful number, since it uses less digits than its factorization.

25437013000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633887 (or 3633873 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

Adding to 25437013000 its reverse (31073452), we get a palindrome (25468086452).

The spelling of 25437013000 in words is "twenty-five billion, four hundred thirty-seven million, thirteen thousand".