55937225 has 12 divisors (see below), whose sum is σ = 73442844. Its totient is φ = 42117120.

The previous prime is 55937213. The next prime is 55937239. The reversal of 55937225 is 52273955.

It can be written as a sum of positive squares in 6 ways, for example, as 4857616 + 51079609 = 2204^2 + 7147^2 .

It is not a de Polignac number, because 55937225 - 2⁴ = 55937209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65384 + ... + 66233.

It is an arithmetic number, because the mean of its divisors is an integer number (6120237).

Almost surely, 2^55937225 is an apocalyptic number.

It is an amenable number.

55937225 is a deficient number, since it is larger than the sum of its proper divisors (17505619).

55937225 is a wasteful number, since it uses less digits than its factorization.

55937225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131644 (or 131639 counting only the distinct ones).

The product of its digits is 94500, while the sum is 38.

The square root of 55937225 is about 7479.1192663308. The cubic root of 55937225 is about 382.4432256572.

The spelling of 55937225 in words is "fifty-five million, nine hundred thirty-seven thousand, two hundred twenty-five".