55508577 has 8 divisors (see below), whose sum is σ = 74690880. Its totient is φ = 36666000.

The previous prime is 55508567. The next prime is 55508617. The reversal of 55508577 is 77580555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55508577 - 2⁴ = 55508561 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (55508567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84549 + ... + 85202.

It is an arithmetic number, because the mean of its divisors is an integer number (9336360).

Almost surely, 2^55508577 is an apocalyptic number.

It is an amenable number.

55508577 is a deficient number, since it is larger than the sum of its proper divisors (19182303).

55508577 is a wasteful number, since it uses less digits than its factorization.

55508577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169863.

The product of its (nonzero) digits is 245000, while the sum is 42.

The square root of 55508577 is about 7450.4078411856. The cubic root of 55508577 is about 381.4638298105.

The spelling of 55508577 in words is "fifty-five million, five hundred eight thousand, five hundred seventy-seven".