5555610657 has 24 divisors (see below), whose sum is σ = 8316741888. Its totient is φ = 3569940000.

The previous prime is 5555610653. The next prime is 5555610661. The reversal of 5555610657 is 7560165555.

It is an interprime number because it is at equal distance from previous prime (5555610653) and next prime (5555610661).

It is not a de Polignac number, because 5555610657 - 2² = 5555610653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5555610653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30363 + ... + 109695.

It is an arithmetic number, because the mean of its divisors is an integer number (346530912).

Almost surely, 2^5555610657 is an apocalyptic number.

It is an amenable number.

5555610657 is a deficient number, since it is larger than the sum of its proper divisors (2761131231).

5555610657 is a wasteful number, since it uses less digits than its factorization.

5555610657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79621 (or 79618 counting only the distinct ones).

The product of its (nonzero) digits is 787500, while the sum is 45.

The square root of 5555610657 is about 74535.9688808028. The cubic root of 5555610657 is about 1771.1034706872.

The spelling of 5555610657 in words is "five billion, five hundred fifty-five million, six hundred ten thousand, six hundred fifty-seven".