253444425134450 has 48 divisors (see below), whose sum is σ = 520040001336480. Its totient is φ = 91126085424000.

The previous prime is 253444425134447. The next prime is 253444425134477. The reversal of 253444425134450 is 54431524444352.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2588760296 + ... + 2588858195.

It is an arithmetic number, because the mean of its divisors is an integer number (10834166694510).

Almost surely, 2^{253444425134450} is an apocalyptic number.

253444425134450 is an abundant number, since it is smaller than the sum of its proper divisors (266595576202030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253444425134450 is a wasteful number, since it uses less digits than its factorization.

253444425134450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177618603 (or 5177618598 counting only the distinct ones).

The product of its (nonzero) digits is 18432000, while the sum is 50.

The spelling of 253444425134450 in words is "two hundred fifty-three trillion, four hundred forty-four billion, four hundred twenty-five million, one hundred thirty-four thousand, four hundred fifty".