25287053504 has 14 divisors (see below), whose sum is σ = 50178996924. Its totient is φ = 12643526720.

The previous prime is 25287053471. The next prime is 25287053509. The reversal of 25287053504 is 40535078252.

It is not an unprimeable number, because it can be changed into a prime (25287053509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197555042 + ... + 197555169.

It is an arithmetic number, because the mean of its divisors is an integer number (3584214066).

Almost surely, 2^25287053504 is an apocalyptic number.

It is an amenable number.

25287053504 is a deficient number, since it is larger than the sum of its proper divisors (24891943420).

25287053504 is an equidigital number, since it uses as much as digits as its factorization.

25287053504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395110223 (or 395110213 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 25287053504 in words is "twenty-five billion, two hundred eighty-seven million, fifty-three thousand, five hundred four".