253111244430 has 64 divisors (see below), whose sum is σ = 678102720768. Its totient is φ = 59933314560.

The previous prime is 253111244429. The next prime is 253111244459. The reversal of 253111244430 is 34442111352.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8904459 + ... + 8932838.

It is an arithmetic number, because the mean of its divisors is an integer number (10595355012).

Almost surely, 2^253111244430 is an apocalyptic number.

253111244430 is an abundant number, since it is smaller than the sum of its proper divisors (424991476338).

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

253111244430 is a wasteful number, since it uses less digits than its factorization.

253111244430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17837361.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 253111244430 its reverse (34442111352), we get a palindrome (287553355782).

The spelling of 253111244430 in words is "two hundred fifty-three billion, one hundred eleven million, two hundred forty-four thousand, four hundred thirty".