52222999 has 4 divisors (see below), whose sum is σ = 52365664. Its totient is φ = 52080336.

The previous prime is 52222993. The next prime is 52223011. The reversal of 52222999 is 99922225.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52222999 - 2¹¹ = 52220951 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 (52222993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70782 + ... + 71515.

It is an arithmetic number, because the mean of its divisors is an integer number (13091416).

Almost surely, 2^52222999 is an apocalyptic number.

52222999 is a deficient number, since it is larger than the sum of its proper divisors (142665).

52222999 is a wasteful number, since it uses less digits than its factorization.

52222999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142664.

The product of its digits is 58320, while the sum is 40.

The square root of 52222999 is about 7226.5482078237. The cubic root of 52222999 is about 373.7839100786.

The spelling of 52222999 in words is "fifty-two million, two hundred twenty-two thousand, nine hundred ninety-nine".