52221640531 has 8 divisors (see below), whose sum is σ = 52526583200. Its totient is φ = 51916878720.

The previous prime is 52221640483. The next prime is 52221640571. The reversal of 52221640531 is 13504612225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52221640531 - 2¹⁹ = 52221116243 is a prime.

It is a super-2 number, since 2×52221640531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52221640493 and 52221640502.

It is not an unprimeable number, because it can be changed into a prime (52221640571) 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, 557275 + ... + 644203.

It is an arithmetic number, because the mean of its divisors is an integer number (6565822900).

Almost surely, 2^52221640531 is an apocalyptic number.

52221640531 is a deficient number, since it is larger than the sum of its proper divisors (304942669).

52221640531 is a wasteful number, since it uses less digits than its factorization.

52221640531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90429.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 52221640531 in words is "fifty-two billion, two hundred twenty-one million, six hundred forty thousand, five hundred thirty-one".