253394897 has 8 divisors (see below), whose sum is σ = 290584896. Its totient is φ = 216452592.

The previous prime is 253394893. The next prime is 253394903. The reversal of 253394897 is 798493352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253394897 - 2² = 253394893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253394893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59723 + ... + 63824.

It is an arithmetic number, because the mean of its divisors is an integer number (36323112).

Almost surely, 2^253394897 is an apocalyptic number.

It is an amenable number.

253394897 is a deficient number, since it is larger than the sum of its proper divisors (37189999).

253394897 is a wasteful number, since it uses less digits than its factorization.

253394897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123847.

The product of its digits is 1632960, while the sum is 50.

The square root of 253394897 is about 15918.3823612828. The cubic root of 253394897 is about 632.7992486911.

The spelling of 253394897 in words is "two hundred fifty-three million, three hundred ninety-four thousand, eight hundred ninety-seven".