55875625 has 45 divisors (see below), whose sum is σ = 79036419. Its totient is φ = 39468000.

The previous prime is 55875613. The next prime is 55875629. The reversal of 55875625 is 52657855.

The square root of 55875625 is 7475.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 55190041 + 685584 = 7429^2 + 828^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55875625 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55875629) 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 44 ways as a sum of consecutive naturals, for example, 2429364 + ... + 2429386.

Almost surely, 2^55875625 is an apocalyptic number.

55875625 is the 7475-th square number.

55875625 is the 3738-th centered octagonal number.

It is an amenable number.

55875625 is a deficient number, since it is larger than the sum of its proper divisors (23160794).

55875625 is an equidigital number, since it uses as much as digits as its factorization.

55875625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 41 counting only the distinct ones).

The product of its digits is 420000, while the sum is 43.

The cubic root of 55875625 is about 382.3027875392.

The spelling of 55875625 in words is "fifty-five million, eight hundred seventy-five thousand, six hundred twenty-five".