7925172525 has 18 divisors (see below), whose sum is σ = 14194864970. Its totient is φ = 4226758560.

The previous prime is 7925172499. The next prime is 7925172559. The reversal of 7925172525 is 5252715297.

7925172525 is a `hidden beast` number, since 7 + 9 + 2 + 51 + 72 + 525 = 666.

7925172525 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2662250409 + 5262922116 = 51597^2 + 72546^2 .

It is not a de Polignac number, because 7925172525 - 2¹⁵ = 7925139757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17611270 + ... + 17611719.

Almost surely, 2^7925172525 is an apocalyptic number.

7925172525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7925172525 is a deficient number, since it is larger than the sum of its proper divisors (6269692445).

7925172525 is a wasteful number, since it uses less digits than its factorization.

7925172525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35223005 (or 35222997 counting only the distinct ones).

The product of its digits is 441000, while the sum is 45.

The square root of 7925172525 is about 89023.4380654892. The cubic root of 7925172525 is about 1993.7448339276.

The spelling of 7925172525 in words is "seven billion, nine hundred twenty-five million, one hundred seventy-two thousand, five hundred twenty-five".