253767798 has 48 divisors (see below), whose sum is σ = 569926656. Its totient is φ = 81520560.

The previous prime is 253767797. The next prime is 253767803. The reversal of 253767798 is 897767352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253767797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157111 + ... + 158717.

It is an arithmetic number, because the mean of its divisors is an integer number (11873472).

Almost surely, 2^253767798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253767798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284963328).

253767798 is an abundant number, since it is smaller than the sum of its proper divisors (316158858).

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

253767798 is a wasteful number, since it uses less digits than its factorization.

253767798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929 (or 1926 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 54.

The square root of 253767798 is about 15930.0909601923. The cubic root of 253767798 is about 633.1095098901.

The spelling of 253767798 in words is "two hundred fifty-three million, seven hundred sixty-seven thousand, seven hundred ninety-eight".