253321788 has 12 divisors (see below), whose sum is σ = 591084200. Its totient is φ = 84440592.

The previous prime is 253321771. The next prime is 253321807. The reversal of 253321788 is 887123352.

253321788 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

253321788 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10555063 + ... + 10555086.

Almost surely, 2^253321788 is an apocalyptic number.

It is an amenable number.

253321788 is an abundant number, since it is smaller than the sum of its proper divisors (337762412).

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

253321788 is a wasteful number, since it uses less digits than its factorization.

253321788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21110156 (or 21110154 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 253321788 is about 15916.0858253529. The cubic root of 253321788 is about 632.7383848368.

The spelling of 253321788 in words is "two hundred fifty-three million, three hundred twenty-one thousand, seven hundred eighty-eight".