52220554531 has 4 divisors (see below), whose sum is σ = 52509066064. Its totient is φ = 51932043000.

The previous prime is 52220554523. The next prime is 52220554549. The reversal of 52220554531 is 13545502225.

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 52220554531 - 2³ = 52220554523 is a prime.

It is a super-2 number, since 2×52220554531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52220554231) 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, 144255495 + ... + 144255856.

It is an arithmetic number, because the mean of its divisors is an integer number (13127266516).

Almost surely, 2^52220554531 is an apocalyptic number.

52220554531 is a deficient number, since it is larger than the sum of its proper divisors (288511533).

52220554531 is a wasteful number, since it uses less digits than its factorization.

52220554531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288511532.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 52220554531 in words is "fifty-two billion, two hundred twenty million, five hundred fifty-four thousand, five hundred thirty-one".