55257508 has 12 divisors (see below), whose sum is σ = 96758172. Its totient is φ = 27612320.

The previous prime is 55257493. The next prime is 55257551. The reversal of 55257508 is 80575255.

It can be written as a sum of positive squares in 2 ways, for example, as 17040384 + 38217124 = 4128^2 + 6182^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6498 + ... + 12358.

It is an arithmetic number, because the mean of its divisors is an integer number (8063181).

Almost surely, 2^55257508 is an apocalyptic number.

It is an amenable number.

55257508 is a deficient number, since it is larger than the sum of its proper divisors (41500664).

55257508 is a wasteful number, since it uses less digits than its factorization.

55257508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8222 (or 8220 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 37.

The square root of 55257508 is about 7433.5393992364. The cubic root of 55257508 is about 380.8878317190.

The spelling of 55257508 in words is "fifty-five million, two hundred fifty-seven thousand, five hundred eight".