253295945 has 24 divisors (see below), whose sum is σ = 354312000. Its totient is φ = 173329632.

The previous prime is 253295927. The next prime is 253295953. The reversal of 253295945 is 549592352.

It is not a de Polignac number, because 253295945 - 2⁶ = 253295881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253295896 and 253295905.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180356 + ... + 181754.

It is an arithmetic number, because the mean of its divisors is an integer number (14763000).

Almost surely, 2^253295945 is an apocalyptic number.

It is an amenable number.

253295945 is a deficient number, since it is larger than the sum of its proper divisors (101016055).

253295945 is a wasteful number, since it uses less digits than its factorization.

253295945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157 (or 2150 counting only the distinct ones).

The product of its digits is 486000, while the sum is 44.

The square root of 253295945 is about 15915.2739530302. The cubic root of 253295945 is about 632.7168675217.

The spelling of 253295945 in words is "two hundred fifty-three million, two hundred ninety-five thousand, nine hundred forty-five".