52177725 has 18 divisors (see below), whose sum is σ = 93456506. Its totient is φ = 27828000.

The previous prime is 52177717. The next prime is 52177729. The reversal of 52177725 is 52777125.

It can be written as a sum of positive squares in 3 ways, for example, as 10536516 + 41641209 = 3246^2 + 6453^2 .

It is not a de Polignac number, because 52177725 - 2³ = 52177717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52177725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52177729) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 115726 + ... + 116175.

Almost surely, 2^52177725 is an apocalyptic number.

It is an amenable number.

52177725 is a deficient number, since it is larger than the sum of its proper divisors (41278781).

52177725 is a wasteful number, since it uses less digits than its factorization.

52177725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231917 (or 231909 counting only the distinct ones).

The product of its digits is 34300, while the sum is 36.

The square root of 52177725 is about 7223.4150510683. The cubic root of 52177725 is about 373.6758632683.

The spelling of 52177725 in words is "fifty-two million, one hundred seventy-seven thousand, seven hundred twenty-five".