52620539 has 2 divisors, whose sum is σ = 52620540. Its totient is φ = 52620538.

The previous prime is 52620523. The next prime is 52620541. The reversal of 52620539 is 93502625.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52620539 - 2⁴ = 52620523 is a prime.

It is a super-2 number, since 2×52620539² = 5537842249301042, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 52620541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52620509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26310269 + 26310270.

It is an arithmetic number, because the mean of its divisors is an integer number (26310270).

Almost surely, 2^52620539 is an apocalyptic number.

52620539 is a deficient number, since it is larger than the sum of its proper divisors (1).

52620539 is an equidigital number, since it uses as much as digits as its factorization.

52620539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 52620539 is about 7254.0015853321. The cubic root of 52620539 is about 374.7299721250.

The spelling of 52620539 in words is "fifty-two million, six hundred twenty thousand, five hundred thirty-nine".