25287129290 has 32 divisors (see below), whose sum is σ = 45683502336. Its totient is φ = 10077883200.

The previous prime is 25287129253. The next prime is 25287129311. The reversal of 25287129290 is 9292178252.

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, 3390065 + ... + 3397515.

It is an arithmetic number, because the mean of its divisors is an integer number (1427609448).

Almost surely, 2^25287129290 is an apocalyptic number.

25287129290 is a deficient number, since it is larger than the sum of its proper divisors (20396373046).

25287129290 is a wasteful number, since it uses less digits than its factorization.

25287129290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8654.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 25287129290 in words is "twenty-five billion, two hundred eighty-seven million, one hundred twenty-nine thousand, two hundred ninety".