52808290 has 32 divisors (see below), whose sum is σ = 101574000. Its totient is φ = 19697664.

The previous prime is 52808279. The next prime is 52808297. The reversal of 52808290 is 9280825.

It can be written as a sum of positive squares in 8 ways, for example, as 5212089 + 47596201 = 2283^2 + 6899^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (52808297) 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, 17836 + ... + 20584.

Almost surely, 2^52808290 is an apocalyptic number.

52808290 is a deficient number, since it is larger than the sum of its proper divisors (48765710).

52808290 is a wasteful number, since it uses less digits than its factorization.

52808290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 52808290 is about 7266.9312642958. The cubic root of 52808290 is about 375.1751241306.

The spelling of 52808290 in words is "fifty-two million, eight hundred eight thousand, two hundred ninety".