52890613 has 2 divisors, whose sum is σ = 52890614. Its totient is φ = 52890612.

The previous prime is 52890611. The next prime is 52890637. The reversal of 52890613 is 31609825.

52890613 = 5142² + 5143².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26450449 + 26440164 = 5143^2 + 5142^2 .

It is a cyclic number.

It is not a de Polignac number, because 52890613 - 2¹ = 52890611 is a prime.

Together with 52890611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52890611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26445306 + 26445307.

It is an arithmetic number, because the mean of its divisors is an integer number (26445307).

Almost surely, 2^52890613 is an apocalyptic number.

52890613 is the 5143-rd centered square number.

It is an amenable number.

52890613 is a deficient number, since it is larger than the sum of its proper divisors (1).

52890613 is an equidigital number, since it uses as much as digits as its factorization.

52890613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 52890613 is about 7272.5932788793. The cubic root of 52890613 is about 375.3699767850.

The spelling of 52890613 in words is "fifty-two million, eight hundred ninety thousand, six hundred thirteen".