52490817 has 6 divisors (see below), whose sum is σ = 75820082. Its totient is φ = 34993872.

The previous prime is 52490813. The next prime is 52490833. The reversal of 52490817 is 71809425.

It can be written as a sum of positive squares in only one way, i.e., 26998416 + 25492401 = 5196^2 + 5049^2 .

It is not a de Polignac number, because 52490817 - 2² = 52490813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52490813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2916148 + ... + 2916165.

Almost surely, 2^52490817 is an apocalyptic number.

It is an amenable number.

52490817 is a deficient number, since it is larger than the sum of its proper divisors (23329265).

52490817 is a wasteful number, since it uses less digits than its factorization.

52490817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832319 (or 5832316 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 52490817 is about 7245.0546581789. The cubic root of 52490817 is about 374.4217862418.

The spelling of 52490817 in words is "fifty-two million, four hundred ninety thousand, eight hundred seventeen".