125165025 has 18 divisors (see below), whose sum is σ = 224184870. Its totient is φ = 66754560.

The previous prime is 125165003. The next prime is 125165039. The reversal of 125165025 is 520561521.

125165025 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 650 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1354896 + 123810129 = 1164^2 + 11127^2 .

It is not a de Polignac number, because 125165025 - 2⁶ = 125164961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125165025.

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, 277920 + ... + 278369.

It is an arithmetic number, because the mean of its divisors is an integer number (12454715).

Almost surely, 2^125165025 is an apocalyptic number.

125165025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125165025 is a deficient number, since it is larger than the sum of its proper divisors (99019845).

125165025 is a wasteful number, since it uses less digits than its factorization.

125165025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556305 (or 556297 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 125165025 is about 11187.7175956493. The cubic root of 125165025 is about 500.2199365750.

The spelling of 125165025 in words is "one hundred twenty-five million, one hundred sixty-five thousand, twenty-five".