55385504 has 12 divisors (see below), whose sum is σ = 109040274. Its totient is φ = 27692736.

The previous prime is 55385479. The next prime is 55385509. The reversal of 55385504 is 40558355.

It can be written as a sum of positive squares in only one way, i.e., 53993104 + 1392400 = 7348^2 + 1180^2 .

It is not an unprimeable number, because it can be changed into a prime (55385509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 865367 + ... + 865430.

Almost surely, 2^55385504 is an apocalyptic number.

It is an amenable number.

55385504 is a deficient number, since it is larger than the sum of its proper divisors (53654770).

55385504 is a wasteful number, since it uses less digits than its factorization.

55385504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730807 (or 1730799 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 55385504 is about 7442.1437771653. The cubic root of 55385504 is about 381.1816954046.

The spelling of 55385504 in words is "fifty-five million, three hundred eighty-five thousand, five hundred four".