253919697 has 8 divisors (see below), whose sum is σ = 339052320. Its totient is φ = 169033440.

The previous prime is 253919693. The next prime is 253919707. The reversal of 253919697 is 796919352.

It is a happy number.

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

It is not a de Polignac number, because 253919697 - 2² = 253919693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253919693) 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, 59172 + ... + 63317.

It is an arithmetic number, because the mean of its divisors is an integer number (42381540).

Almost surely, 2^253919697 is an apocalyptic number.

It is an amenable number.

253919697 is a deficient number, since it is larger than the sum of its proper divisors (85132623).

253919697 is a wasteful number, since it uses less digits than its factorization.

253919697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123183.

The product of its digits is 918540, while the sum is 51.

The square root of 253919697 is about 15934.8579221780. The cubic root of 253919697 is about 633.2358058196.

The spelling of 253919697 in words is "two hundred fifty-three million, nine hundred nineteen thousand, six hundred ninety-seven".