2057405751 has 10 divisors (see below), whose sum is σ = 3073408712. Its totient is φ = 1371603780.

The previous prime is 2057405719. The next prime is 2057405759. The reversal of 2057405751 is 1575047502.

It is not a de Polignac number, because 2057405751 - 2⁵ = 2057405719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057405759) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12699955 + ... + 12700116.

Almost surely, 2^2057405751 is an apocalyptic number.

2057405751 is a deficient number, since it is larger than the sum of its proper divisors (1016002961).

2057405751 is an equidigital number, since it uses as much as digits as its factorization.

2057405751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25400083 (or 25400074 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 2057405751 is about 45358.6348008844. The cubic root of 2057405751 is about 1271.8619743878.

The spelling of 2057405751 in words is "two billion, fifty-seven million, four hundred five thousand, seven hundred fifty-one".