52218075 has 72 divisors (see below), whose sum is σ = 108253488. Its totient is φ = 22014720.

The previous prime is 52218053. The next prime is 52218077. The reversal of 52218075 is 57081225.

It is not a de Polignac number, because 52218075 - 2¹⁴ = 52201691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52218077) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47229 + ... + 48321.

Almost surely, 2^52218075 is an apocalyptic number.

52218075 is an abundant number, since it is smaller than the sum of its proper divisors (56035413).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52218075 is a wasteful number, since it uses less digits than its factorization.

52218075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 52218075 is about 7226.2075115513. The cubic root of 52218075 is about 373.7721619353.

The spelling of 52218075 in words is "fifty-two million, two hundred eighteen thousand, seventy-five".