25211985375 has 64 divisors (see below), whose sum is σ = 42503086080. Its totient is φ = 13270809600.

The previous prime is 25211985367. The next prime is 25211985377. The reversal of 25211985375 is 57358911252.

It is not a de Polignac number, because 25211985375 - 2³ = 25211985367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25211985377) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17422902 + ... + 17424348.

It is an arithmetic number, because the mean of its divisors is an integer number (664110720).

Almost surely, 2^25211985375 is an apocalyptic number.

25211985375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25211985375 is a deficient number, since it is larger than the sum of its proper divisors (17291100705).

25211985375 is a wasteful number, since it uses less digits than its factorization.

25211985375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2031 counting only the distinct ones).

The product of its digits is 756000, while the sum is 48.

The spelling of 25211985375 in words is "twenty-five billion, two hundred eleven million, nine hundred eighty-five thousand, three hundred seventy-five".