254238470256 has 80 divisors (see below), whose sum is σ = 678178879488. Its totient is φ = 81987052800.

The previous prime is 254238470251. The next prime is 254238470267. The reversal of 254238470256 is 652074832452.

It is a super-2 number, since 2×254238470256² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254238470251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5125285 + ... + 5174651.

Almost surely, 2^254238470256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254238470256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339089439744).

254238470256 is an abundant number, since it is smaller than the sum of its proper divisors (423940409232).

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

254238470256 is a wasteful number, since it uses less digits than its factorization.

254238470256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52870 (or 52864 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 48.

The spelling of 254238470256 in words is "two hundred fifty-four billion, two hundred thirty-eight million, four hundred seventy thousand, two hundred fifty-six".