252222345451 has 4 divisors (see below), whose sum is σ = 252508637304. Its totient is φ = 251936053600.

The previous prime is 252222345433. The next prime is 252222345457. The reversal of 252222345451 is 154543222252.

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 252222345451 - 2²¹ = 252220248299 is a prime.

It is a super-2 number, since 2×252222345451² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252222345451.

It is not an unprimeable number, because it can be changed into a prime (252222345457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143144605 + ... + 143146366.

It is an arithmetic number, because the mean of its divisors is an integer number (63127159326).

Almost surely, 2^252222345451 is an apocalyptic number.

252222345451 is a deficient number, since it is larger than the sum of its proper divisors (286291853).

252222345451 is an equidigital number, since it uses as much as digits as its factorization.

252222345451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286291852.

The product of its digits is 192000, while the sum is 37.

The spelling of 252222345451 in words is "two hundred fifty-two billion, two hundred twenty-two million, three hundred forty-five thousand, four hundred fifty-one".