253911553648 has 40 divisors (see below), whose sum is σ = 522393408432. Its totient is φ = 119143400448.

The previous prime is 253911553619. The next prime is 253911553657. The reversal of 253911553648 is 846355119352.

It is a junction number, because it is equal to n+sod(n) for n = 253911553595 and 253911553604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1250715 + ... + 1439482.

Almost surely, 2^253911553648 is an apocalyptic number.

It is an amenable number.

253911553648 is an abundant number, since it is smaller than the sum of its proper divisors (268481854784).

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

253911553648 is a wasteful number, since it uses less digits than its factorization.

253911553648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690569 (or 2690563 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 52.

The spelling of 253911553648 in words is "two hundred fifty-three billion, nine hundred eleven million, five hundred fifty-three thousand, six hundred forty-eight".