55048657 has 4 divisors (see below), whose sum is σ = 55951156. Its totient is φ = 54146160.

The previous prime is 55048649. The next prime is 55048661. The reversal of 55048657 is 75684055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 54302161 = 864^2 + 7369^2 .

It is a cyclic number.

It is not a de Polignac number, because 55048657 - 2³ = 55048649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55048687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451158 + ... + 451279.

It is an arithmetic number, because the mean of its divisors is an integer number (13987789).

Almost surely, 2^55048657 is an apocalyptic number.

It is an amenable number.

55048657 is a deficient number, since it is larger than the sum of its proper divisors (902499).

55048657 is an equidigital number, since it uses as much as digits as its factorization.

55048657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902498.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 55048657 is about 7419.4782161551. The cubic root of 55048657 is about 380.4073586325.

It can be divided in two parts, 5504 and 8657, that added together give a square (14161 = 119²).

The spelling of 55048657 in words is "fifty-five million, forty-eight thousand, six hundred fifty-seven".