252215454453 has 4 divisors (see below), whose sum is σ = 336287272608. Its totient is φ = 168143636300.

The previous prime is 252215454401. The next prime is 252215454511. The reversal of 252215454453 is 354454512252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252215454453 - 2¹³ = 252215446261 is a prime.

It is a super-2 number, since 2×252215454453² (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 (252215454653) 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, 42035909073 + ... + 42035909078.

It is an arithmetic number, because the mean of its divisors is an integer number (84071818152).

Almost surely, 2^252215454453 is an apocalyptic number.

It is an amenable number.

252215454453 is a deficient number, since it is larger than the sum of its proper divisors (84071818155).

252215454453 is an equidigital number, since it uses as much as digits as its factorization.

252215454453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84071818154.

The product of its digits is 960000, while the sum is 42.

The spelling of 252215454453 in words is "two hundred fifty-two billion, two hundred fifteen million, four hundred fifty-four thousand, four hundred fifty-three".