2557580551 has 4 divisors (see below), whose sum is σ = 2559274704. Its totient is φ = 2555886400.

The previous prime is 2557580549. The next prime is 2557580567. The reversal of 2557580551 is 1550857552.

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 2557580551 - 2¹ = 2557580549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2557580498 and 2557580507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557580591) 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, 844810 + ... + 847831.

It is an arithmetic number, because the mean of its divisors is an integer number (639818676).

Almost surely, 2^2557580551 is an apocalyptic number.

2557580551 is a deficient number, since it is larger than the sum of its proper divisors (1694153).

2557580551 is a wasteful number, since it uses less digits than its factorization.

2557580551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694152.

The product of its (nonzero) digits is 350000, while the sum is 43.

The square root of 2557580551 is about 50572.5276311161. The cubic root of 2557580551 is about 1367.5496632131.

The spelling of 2557580551 in words is "two billion, five hundred fifty-seven million, five hundred eighty thousand, five hundred fifty-one".