52890647 has 2 divisors, whose sum is σ = 52890648. Its totient is φ = 52890646.

The previous prime is 52890637. The next prime is 52890659. The reversal of 52890647 is 74609825.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52890647 - 2⁸ = 52890391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52890637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26445323 + 26445324.

It is an arithmetic number, because the mean of its divisors is an integer number (26445324).

Almost surely, 2^52890647 is an apocalyptic number.

52890647 is a deficient number, since it is larger than the sum of its proper divisors (1).

52890647 is an equidigital number, since it uses as much as digits as its factorization.

52890647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 52890647 is about 7272.5956164220. The cubic root of 52890647 is about 375.3700572188.

The spelling of 52890647 in words is "fifty-two million, eight hundred ninety thousand, six hundred forty-seven".