55871325 has 18 divisors (see below), whose sum is σ = 100072154. Its totient is φ = 29797920.

The previous prime is 55871317. The next prime is 55871339. The reversal of 55871325 is 52317855.

55871325 is a `hidden beast` number, since 558 + 71 + 32 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 3250809 + 52620516 = 1803^2 + 7254^2 .

It is not a de Polignac number, because 55871325 - 2³ = 55871317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55871325.

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, 123934 + ... + 124383.

Almost surely, 2^55871325 is an apocalyptic number.

It is an amenable number.

55871325 is a deficient number, since it is larger than the sum of its proper divisors (44200829).

55871325 is a wasteful number, since it uses less digits than its factorization.

55871325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248333 (or 248325 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 55871325 is about 7474.7123690481. The cubic root of 55871325 is about 382.2929803758.

The spelling of 55871325 in words is "fifty-five million, eight hundred seventy-one thousand, three hundred twenty-five".