2557830131 has 4 divisors (see below), whose sum is σ = 2646031200. Its totient is φ = 2469629064.

The previous prime is 2557830089. The next prime is 2557830133. The reversal of 2557830131 is 1310387552.

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

It is a cyclic number.

It is not a de Polignac number, because 2557830131 - 2¹⁰ = 2557829107 is a prime.

It is a super-2 number, since 2×2557830131² = 13084989958102954322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2557830091 and 2557830100.

It is not an unprimeable number, because it can be changed into a prime (2557830133) 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, 44100491 + ... + 44100548.

It is an arithmetic number, because the mean of its divisors is an integer number (661507800).

Almost surely, 2^2557830131 is an apocalyptic number.

2557830131 is a deficient number, since it is larger than the sum of its proper divisors (88201069).

2557830131 is an equidigital number, since it uses as much as digits as its factorization.

2557830131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88201068.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 2557830131 is about 50574.9951161639. The cubic root of 2557830131 is about 1367.5941456105.

The spelling of 2557830131 in words is "two billion, five hundred fifty-seven million, eight hundred thirty thousand, one hundred thirty-one".