2311552557 has 6 divisors (see below), whose sum is σ = 3338909262. Its totient is φ = 1541035032.

The previous prime is 2311552549. The next prime is 2311552627. The reversal of 2311552557 is 7552551132.

It can be written as a sum of positive squares in only one way, i.e., 2310340356 + 1212201 = 48066^2 + 1101^2 .

It is not a de Polignac number, because 2311552557 - 2³ = 2311552549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311552517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128419578 + ... + 128419595.

It is an arithmetic number, because the mean of its divisors is an integer number (556484877).

Almost surely, 2^2311552557 is an apocalyptic number.

It is an amenable number.

2311552557 is a deficient number, since it is larger than the sum of its proper divisors (1027356705).

2311552557 is a wasteful number, since it uses less digits than its factorization.

2311552557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256839179 (or 256839176 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 2311552557 is about 48078.6081017327. The cubic root of 2311552557 is about 1322.2124964442.

The spelling of 2311552557 in words is "two billion, three hundred eleven million, five hundred fifty-two thousand, five hundred fifty-seven".