49516457 has 4 divisors (see below), whose sum is σ = 49590276. Its totient is φ = 49442640.

The previous prime is 49516391. The next prime is 49516459. The reversal of 49516457 is 75461594.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46730896 + 2785561 = 6836^2 + 1669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49516457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49516459) 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, 35894 + ... + 37247.

It is an arithmetic number, because the mean of its divisors is an integer number (12397569).

Almost surely, 2^49516457 is an apocalyptic number.

It is an amenable number.

49516457 is a deficient number, since it is larger than the sum of its proper divisors (73819).

49516457 is an equidigital number, since it uses as much as digits as its factorization.

49516457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73818.

The product of its digits is 151200, while the sum is 41.

The square root of 49516457 is about 7036.7930906060. The cubic root of 49516457 is about 367.2117090554.

The spelling of 49516457 in words is "forty-nine million, five hundred sixteen thousand, four hundred fifty-seven".