253254451254 has 128 divisors (see below), whose sum is σ = 640228976640. Its totient is φ = 65073659904.

The previous prime is 253254451249. The next prime is 253254451321. The reversal of 253254451254 is 452154452352.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16956462 + ... + 16971390.

It is an arithmetic number, because the mean of its divisors is an integer number (5001788880).

Almost surely, 2^253254451254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253254451254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320114488320).

253254451254 is an abundant number, since it is smaller than the sum of its proper divisors (386974525386).

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

253254451254 is a wasteful number, since it uses less digits than its factorization.

253254451254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16014.

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

The spelling of 253254451254 in words is "two hundred fifty-three billion, two hundred fifty-four million, four hundred fifty-one thousand, two hundred fifty-four".