25138028175 has 48 divisors (see below), whose sum is σ = 44918354208. Its totient is φ = 12331468800.

The previous prime is 25138028173. The next prime is 25138028191. The reversal of 25138028175 is 57182083152.

It is not a de Polignac number, because 25138028175 - 2¹ = 25138028173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25138028171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 228099 + ... + 319851.

It is an arithmetic number, because the mean of its divisors is an integer number (935799046).

Almost surely, 2^25138028175 is an apocalyptic number.

25138028175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25138028175 is a deficient number, since it is larger than the sum of its proper divisors (19780326033).

25138028175 is a wasteful number, since it uses less digits than its factorization.

25138028175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92060 (or 92055 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 25138028175 in words is "twenty-five billion, one hundred thirty-eight million, twenty-eight thousand, one hundred seventy-five".