253091749888 has 28 divisors (see below), whose sum is σ = 506152621170. Its totient is φ = 126545870848.

The previous prime is 253091749879. The next prime is 253091749891. The reversal of 253091749888 is 888947190352.

It can be written as a sum of positive squares in only one way, i.e., 150568833024 + 102522916864 = 388032^2 + 320192^2 .

It is a super-2 number, since 2×253091749888² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15439303 + ... + 15455686.

Almost surely, 2^253091749888 is an apocalyptic number.

It is an amenable number.

253091749888 is a deficient number, since it is larger than the sum of its proper divisors (253060871282).

253091749888 is an frugal number, since it uses more digits than its factorization.

253091749888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30895015 (or 30894991 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 253091749888 in words is "two hundred fifty-three billion, ninety-one million, seven hundred forty-nine thousand, eight hundred eighty-eight".