253298417720 has 32 divisors (see below), whose sum is σ = 574081462800. Its totient is φ = 100579807488.

The previous prime is 253298417707. The next prime is 253298417741. The reversal of 253298417720 is 27714892352.

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, 23105690 + ... + 23116649.

Almost surely, 2^253298417720 is an apocalyptic number.

253298417720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253298417720 is an abundant number, since it is smaller than the sum of its proper divisors (320783045080).

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

253298417720 is a wasteful number, since it uses less digits than its factorization.

253298417720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46222487 (or 46222483 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 253298417720 in words is "two hundred fifty-three billion, two hundred ninety-eight million, four hundred seventeen thousand, seven hundred twenty".