253227978 has 32 divisors (see below), whose sum is σ = 567040320. Its totient is φ = 83762640.

The previous prime is 253227977. The next prime is 253227983. The reversal of 253227978 is 879722352.

253227978 is a `hidden beast` number, since 2 + 532 + 27 + 97 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (253227973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10825 + ... + 24972.

It is an arithmetic number, because the mean of its divisors is an integer number (17720010).

Almost surely, 2^253227978 is an apocalyptic number.

253227978 is an abundant number, since it is smaller than the sum of its proper divisors (313812342).

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

253227978 is a wasteful number, since it uses less digits than its factorization.

253227978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35939 (or 35933 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 253227978 is about 15913.1385339285. The cubic root of 253227978 is about 632.6602700710.

The spelling of 253227978 in words is "two hundred fifty-three million, two hundred twenty-seven thousand, nine hundred seventy-eight".