52518551 has 2 divisors, whose sum is σ = 52518552. Its totient is φ = 52518550.

The previous prime is 52518547. The next prime is 52518563. The reversal of 52518551 is 15581525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52518551 - 2² = 52518547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52518511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26259275 + 26259276.

It is an arithmetic number, because the mean of its divisors is an integer number (26259276).

Almost surely, 2^52518551 is an apocalyptic number.

52518551 is a deficient number, since it is larger than the sum of its proper divisors (1).

52518551 is an equidigital number, since it uses as much as digits as its factorization.

52518551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10000, while the sum is 32.

The square root of 52518551 is about 7246.9684006486. The cubic root of 52518551 is about 374.4877176821.

The spelling of 52518551 in words is "fifty-two million, five hundred eighteen thousand, five hundred fifty-one".