2521162457 has 16 divisors (see below), whose sum is σ = 2872212480. Its totient is φ = 2190579600.

The previous prime is 2521162409. The next prime is 2521162477. The reversal of 2521162457 is 7542611252.

2521162457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2521162457 - 2³⁰ = 1447420633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521162477) 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, 396332 + ... + 402642.

It is an arithmetic number, because the mean of its divisors is an integer number (179513280).

Almost surely, 2^2521162457 is an apocalyptic number.

It is an amenable number.

2521162457 is a deficient number, since it is larger than the sum of its proper divisors (351050023).

2521162457 is a wasteful number, since it uses less digits than its factorization.

2521162457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7924.

The product of its digits is 33600, while the sum is 35.

The square root of 2521162457 is about 50211.1786059638. The cubic root of 2521162457 is about 1361.0276361173.

The spelling of 2521162457 in words is "two billion, five hundred twenty-one million, one hundred sixty-two thousand, four hundred fifty-seven".