52516591 has 2 divisors, whose sum is σ = 52516592. Its totient is φ = 52516590.

The previous prime is 52516559. The next prime is 52516643. The reversal of 52516591 is 19561525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52516591 - 2⁵ = 52516559 is a prime.

It is a super-2 number, since 2×52516591² = 5515984660522562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52516501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26258295 + 26258296.

It is an arithmetic number, because the mean of its divisors is an integer number (26258296).

Almost surely, 2^52516591 is an apocalyptic number.

52516591 is a deficient number, since it is larger than the sum of its proper divisors (1).

52516591 is an equidigital number, since it uses as much as digits as its factorization.

52516591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13500, while the sum is 34.

The square root of 52516591 is about 7246.8331704269. The cubic root of 52516591 is about 374.4830589787.

The spelling of 52516591 in words is "fifty-two million, five hundred sixteen thousand, five hundred ninety-one".