2557479590 has 32 divisors (see below), whose sum is σ = 4737312864. Its totient is φ = 993358080.

The previous prime is 2557479539. The next prime is 2557479599. The reversal of 2557479590 is 959747552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557479599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186137 + ... + 199403.

It is an arithmetic number, because the mean of its divisors is an integer number (148041027).

Almost surely, 2^2557479590 is an apocalyptic number.

2557479590 is a deficient number, since it is larger than the sum of its proper divisors (2179833274).

2557479590 is a wasteful number, since it uses less digits than its factorization.

2557479590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13832.

The product of its (nonzero) digits is 3969000, while the sum is 53.

The square root of 2557479590 is about 50571.5294409809. The cubic root of 2557479590 is about 1367.5316682115.

The spelling of 2557479590 in words is "two billion, five hundred fifty-seven million, four hundred seventy-nine thousand, five hundred ninety".