55662725 has 6 divisors (see below), whose sum is σ = 69021810. Its totient is φ = 44530160.

The previous prime is 55662697. The next prime is 55662727. The reversal of 55662725 is 52726655.

It can be written as a sum of positive squares in 3 ways, for example, as 13060996 + 42601729 = 3614^2 + 6527^2 .

It is not a de Polignac number, because 55662725 - 2¹⁴ = 55646341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55662727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1113230 + ... + 1113279.

It is an arithmetic number, because the mean of its divisors is an integer number (11503635).

Almost surely, 2^55662725 is an apocalyptic number.

It is an amenable number.

55662725 is a deficient number, since it is larger than the sum of its proper divisors (13359085).

55662725 is a wasteful number, since it uses less digits than its factorization.

55662725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226519 (or 2226514 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 55662725 is about 7460.7456061710. The cubic root of 55662725 is about 381.8166133637.

The spelling of 55662725 in words is "fifty-five million, six hundred sixty-two thousand, seven hundred twenty-five".