2312660557 has 4 divisors (see below), whose sum is σ = 2413211040. Its totient is φ = 2212110076.

The previous prime is 2312660533. The next prime is 2312660587. The reversal of 2312660557 is 7550662132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2312660557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312660587) 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, 50275207 + ... + 50275252.

It is an arithmetic number, because the mean of its divisors is an integer number (603302760).

Almost surely, 2^2312660557 is an apocalyptic number.

It is an amenable number.

2312660557 is a deficient number, since it is larger than the sum of its proper divisors (100550483).

2312660557 is a wasteful number, since it uses less digits than its factorization.

2312660557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100550482.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 2312660557 is about 48090.1295173968. The cubic root of 2312660557 is about 1322.4237220738.

The spelling of 2312660557 in words is "two billion, three hundred twelve million, six hundred sixty thousand, five hundred fifty-seven".