25513506275 has 12 divisors (see below), whose sum is σ = 31644958224. Its totient is φ = 20405508000.

The previous prime is 25513506253. The next prime is 25513506307. The reversal of 25513506275 is 57260531552.

It is a happy number.

It is not a de Polignac number, because 25513506275 - 2⁸ = 25513506019 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32696 + ... + 228245.

It is an arithmetic number, because the mean of its divisors is an integer number (2637079852).

Almost surely, 2^25513506275 is an apocalyptic number.

25513506275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25513506275 is a deficient number, since it is larger than the sum of its proper divisors (6131451949).

25513506275 is a wasteful number, since it uses less digits than its factorization.

25513506275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264862 (or 264857 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 41.

The spelling of 25513506275 in words is "twenty-five billion, five hundred thirteen million, five hundred six thousand, two hundred seventy-five".