253552715567 has 4 divisors (see below), whose sum is σ = 261731835456. Its totient is φ = 245373595680.

The previous prime is 253552715561. The next prime is 253552715597. The reversal of 253552715567 is 765517255352.

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

It is not a de Polignac number, because 253552715567 - 2²⁸ = 253284280111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253552715561) 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, 4089559898 + ... + 4089559959.

It is an arithmetic number, because the mean of its divisors is an integer number (65432958864).

Almost surely, 2^253552715567 is an apocalyptic number.

253552715567 is a deficient number, since it is larger than the sum of its proper divisors (8179119889).

253552715567 is an equidigital number, since it uses as much as digits as its factorization.

253552715567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8179119888.

The product of its digits is 11025000, while the sum is 53.

The spelling of 253552715567 in words is "two hundred fifty-three billion, five hundred fifty-two million, seven hundred fifteen thousand, five hundred sixty-seven".