2516857458 has 32 divisors (see below), whose sum is σ = 5305487040. Its totient is φ = 793771200.

The previous prime is 2516857451. The next prime is 2516857471. The reversal of 2516857458 is 8547586152.

It is a self number, because there is not a number n which added to its sum of digits gives 2516857458.

It is not an unprimeable number, because it can be changed into a prime (2516857451) 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, 77008 + ... + 104708.

It is an arithmetic number, because the mean of its divisors is an integer number (165796470).

Almost surely, 2^2516857458 is an apocalyptic number.

2516857458 is an abundant number, since it is smaller than the sum of its proper divisors (2788629582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2516857458 is a wasteful number, since it uses less digits than its factorization.

2516857458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28522.

The product of its digits is 2688000, while the sum is 51.

The square root of 2516857458 is about 50168.2913601809. The cubic root of 2516857458 is about 1360.2525226737.

The spelling of 2516857458 in words is "two billion, five hundred sixteen million, eight hundred fifty-seven thousand, four hundred fifty-eight".