253474497 has 12 divisors (see below), whose sum is σ = 385400080. Its totient is φ = 160089048.

The previous prime is 253474399. The next prime is 253474499. The reversal of 253474497 is 794474352.

253474497 is a `hidden beast` number, since 2 + 534 + 74 + 49 + 7 = 666.

It is not a de Polignac number, because 253474497 - 2⁸ = 253474241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253474499) 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, 740983 + ... + 741324.

Almost surely, 2^253474497 is an apocalyptic number.

It is an amenable number.

253474497 is a deficient number, since it is larger than the sum of its proper divisors (131925583).

253474497 is a wasteful number, since it uses less digits than its factorization.

253474497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482332 (or 1482329 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 253474497 is about 15920.8824190118. The cubic root of 253474497 is about 632.8655030465.

The spelling of 253474497 in words is "two hundred fifty-three million, four hundred seventy-four thousand, four hundred ninety-seven".