253775256 has 64 divisors (see below), whose sum is σ = 727073280. Its totient is φ = 72307200.

The previous prime is 253775251. The next prime is 253775273. The reversal of 253775256 is 652577352.

It is a happy number.

253775256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253775251) 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, 65485 + ... + 69251.

It is an arithmetic number, because the mean of its divisors is an integer number (11360520).

Almost surely, 2^253775256 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 253775256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363536640).

253775256 is an abundant number, since it is smaller than the sum of its proper divisors (473298024).

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

253775256 is a wasteful number, since it uses less digits than its factorization.

253775256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184 (or 4180 counting only the distinct ones).

The product of its digits is 441000, while the sum is 42.

The square root of 253775256 is about 15930.3250437648. The cubic root of 253775256 is about 633.1157119963.

The spelling of 253775256 in words is "two hundred fifty-three million, seven hundred seventy-five thousand, two hundred fifty-six".