52563491 has 2 divisors, whose sum is σ = 52563492. Its totient is φ = 52563490.

The previous prime is 52563479. The next prime is 52563493. The reversal of 52563491 is 19436525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52563491 - 2¹⁴ = 52547107 is a prime.

It is a super-2 number, since 2×52563491² = 5525841172214162, which contains 22 as substring.

Together with 52563493, 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 (52563493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26281745 + 26281746.

It is an arithmetic number, because the mean of its divisors is an integer number (26281746).

Almost surely, 2^52563491 is an apocalyptic number.

52563491 is a deficient number, since it is larger than the sum of its proper divisors (1).

52563491 is an equidigital number, since it uses as much as digits as its factorization.

52563491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 35.

The square root of 52563491 is about 7250.0683445055. The cubic root of 52563491 is about 374.5945033142.

The spelling of 52563491 in words is "fifty-two million, five hundred sixty-three thousand, four hundred ninety-one".