52890257 has 16 divisors (see below), whose sum is σ = 62016000. Its totient is φ = 45087840.

The previous prime is 52890251. The next prime is 52890259. The reversal of 52890257 is 75209825.

It is not a de Polignac number, because 52890257 - 2⁴ = 52890241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52890257.

It is not an unprimeable number, because it can be changed into a prime (52890251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92669 + ... + 93237.

It is an arithmetic number, because the mean of its divisors is an integer number (3876000).

Almost surely, 2^52890257 is an apocalyptic number.

It is an amenable number.

52890257 is a deficient number, since it is larger than the sum of its proper divisors (9125743).

52890257 is an equidigital number, since it uses as much as digits as its factorization.

52890257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 52890257 is about 7272.5688033871. The cubic root of 52890257 is about 375.3691345939.

The spelling of 52890257 in words is "fifty-two million, eight hundred ninety thousand, two hundred fifty-seven".