252228808631 has 4 divisors (see below), whose sum is σ = 267065797392. Its totient is φ = 237391819872.

The previous prime is 252228808619. The next prime is 252228808649. The reversal of 252228808631 is 136808822252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252228808631 is a prime.

It is a super-2 number, since 2×252228808631² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252228808681) 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, 7418494355 + ... + 7418494388.

It is an arithmetic number, because the mean of its divisors is an integer number (66766449348).

Almost surely, 2^252228808631 is an apocalyptic number.

252228808631 is a deficient number, since it is larger than the sum of its proper divisors (14836988761).

252228808631 is a wasteful number, since it uses less digits than its factorization.

252228808631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14836988760.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 252228808631 in words is "two hundred fifty-two billion, two hundred twenty-eight million, eight hundred eight thousand, six hundred thirty-one".