253315544455 has 4 divisors (see below), whose sum is σ = 303978653352. Its totient is φ = 202652435560.

The previous prime is 253315544453. The next prime is 253315544483. The reversal of 253315544455 is 554445513352.

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

It is not a de Polignac number, because 253315544455 - 2¹ = 253315544453 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 (253315544453) 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, 25331554441 + ... + 25331554450.

It is an arithmetic number, because the mean of its divisors is an integer number (75994663338).

Almost surely, 2^253315544455 is an apocalyptic number.

253315544455 is a deficient number, since it is larger than the sum of its proper divisors (50663108897).

253315544455 is an equidigital number, since it uses as much as digits as its factorization.

253315544455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50663108896.

The product of its digits is 3600000, while the sum is 46.

The spelling of 253315544455 in words is "two hundred fifty-three billion, three hundred fifteen million, five hundred forty-four thousand, four hundred fifty-five".