52518109 has 16 divisors (see below), whose sum is σ = 63406080. Its totient is φ = 42493680.

The previous prime is 52518079. The next prime is 52518113. The reversal of 52518109 is 90181525.

It is a cyclic number.

It is not a de Polignac number, because 52518109 - 2⁵ = 52518077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52518149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50424 + ... + 51454.

It is an arithmetic number, because the mean of its divisors is an integer number (3962880).

Almost surely, 2^52518109 is an apocalyptic number.

It is an amenable number.

52518109 is a deficient number, since it is larger than the sum of its proper divisors (10887971).

52518109 is a wasteful number, since it uses less digits than its factorization.

52518109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 52518109 is about 7246.9379050741. The cubic root of 52518109 is about 374.4866671070.

The spelling of 52518109 in words is "fifty-two million, five hundred eighteen thousand, one hundred nine".