253111356 has 72 divisors (see below), whose sum is σ = 657296640. Its totient is φ = 82086816.

The previous prime is 253111349. The next prime is 253111361. The reversal of 253111356 is 653111352.

253111356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 383755 + ... + 384413.

It is an arithmetic number, because the mean of its divisors is an integer number (9129120).

Almost surely, 2^253111356 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 253111356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328648320).

253111356 is an abundant number, since it is smaller than the sum of its proper divisors (404185284).

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

253111356 is a wasteful number, since it uses less digits than its factorization.

253111356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 938 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 253111356 is about 15909.4737813669. The cubic root of 253111356 is about 632.5631330484.

The spelling of 253111356 in words is "two hundred fifty-three million, one hundred eleven thousand, three hundred fifty-six".