252216364454 has 4 divisors (see below), whose sum is σ = 378324546684. Its totient is φ = 126108182226.

The previous prime is 252216364453. The next prime is 252216364531. The reversal of 252216364454 is 454463612252.

It is a happy number.

252216364454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×252216364454² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252216364453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63054091112 + ... + 63054091115.

It is an arithmetic number, because the mean of its divisors is an integer number (94581136671).

Almost surely, 2^252216364454 is an apocalyptic number.

252216364454 is a deficient number, since it is larger than the sum of its proper divisors (126108182230).

252216364454 is a wasteful number, since it uses less digits than its factorization.

252216364454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126108182229.

The product of its digits is 1382400, while the sum is 44.

The spelling of 252216364454 in words is "two hundred fifty-two billion, two hundred sixteen million, three hundred sixty-four thousand, four hundred fifty-four".