52318722 has 16 divisors (see below), whose sum is σ = 106411680. Its totient is φ = 17143872.

The previous prime is 52318709. The next prime is 52318727. The reversal of 52318722 is 22781325.

It is a self number, because there is not a number n which added to its sum of digits gives 52318722.

It is not an unprimeable number, because it can be changed into a prime (52318727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73543 + ... + 74250.

It is an arithmetic number, because the mean of its divisors is an integer number (6650730).

Almost surely, 2^52318722 is an apocalyptic number.

52318722 is an abundant number, since it is smaller than the sum of its proper divisors (54092958).

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

52318722 is a wasteful number, since it uses less digits than its factorization.

52318722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147857.

The product of its digits is 6720, while the sum is 30.

The square root of 52318722 is about 7233.1681855187. The cubic root of 52318722 is about 374.0121484610.

The spelling of 52318722 in words is "fifty-two million, three hundred eighteen thousand, seven hundred twenty-two".