2557250871 has 32 divisors (see below), whose sum is σ = 3988113408. Its totient is φ = 1427162880.

The previous prime is 2557250851. The next prime is 2557250909. The reversal of 2557250871 is 1780527552.

2557250871 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2557250871 - 2⁹ = 2557250359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557250821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 511741 + ... + 516713.

It is an arithmetic number, because the mean of its divisors is an integer number (124628544).

Almost surely, 2^2557250871 is an apocalyptic number.

2557250871 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2557250871 is a deficient number, since it is larger than the sum of its proper divisors (1430862537).

2557250871 is a wasteful number, since it uses less digits than its factorization.

2557250871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551.

The product of its (nonzero) digits is 196000, while the sum is 42.

The square root of 2557250871 is about 50569.2680488852. The cubic root of 2557250871 is about 1367.4909002355.

The spelling of 2557250871 in words is "two billion, five hundred fifty-seven million, two hundred fifty thousand, eight hundred seventy-one".