252253430551 has 4 divisors (see below), whose sum is σ = 252292919400. Its totient is φ = 252213941704.

The previous prime is 252253430543. The next prime is 252253430563. The reversal of 252253430551 is 155034352252.

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 252253430551 - 2³ = 252253430543 is a prime.

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 252253430551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252253460551) 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, 19734841 + ... + 19747618.

It is an arithmetic number, because the mean of its divisors is an integer number (63073229850).

Almost surely, 2^252253430551 is an apocalyptic number.

252253430551 is a deficient number, since it is larger than the sum of its proper divisors (39488849).

252253430551 is an equidigital number, since it uses as much as digits as its factorization.

252253430551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39488848.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 252253430551 in words is "two hundred fifty-two billion, two hundred fifty-three million, four hundred thirty thousand, five hundred fifty-one".