253318977 has 12 divisors (see below), whose sum is σ = 374415184. Its totient is φ = 164951640.

The previous prime is 253318937. The next prime is 253318981. The reversal of 253318977 is 779813352.

It is a happy number.

253318977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253318977 - 2⁶ = 253318913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253318937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326899 + ... + 327672.

Almost surely, 2^253318977 is an apocalyptic number.

It is an amenable number.

253318977 is a deficient number, since it is larger than the sum of its proper divisors (121096207).

253318977 is a wasteful number, since it uses less digits than its factorization.

253318977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654620 (or 654617 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 253318977 is about 15915.9975182205. The cubic root of 253318977 is about 632.7360444220.

The spelling of 253318977 in words is "two hundred fifty-three million, three hundred eighteen thousand, nine hundred seventy-seven".