253066417 has 8 divisors (see below), whose sum is σ = 255131240. Its totient is φ = 251009280.

The previous prime is 253066409. The next prime is 253066477. The reversal of 253066417 is 714660352.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18241441 + 234824976 = 4271^2 + 15324^2 .

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 253066417 - 2³ = 253066409 is a prime.

It is a super-2 number, since 2×253066417² = 128085222826435778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253066477) 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, 76759 + ... + 79987.

It is an arithmetic number, because the mean of its divisors is an integer number (31891405).

Almost surely, 2^253066417 is an apocalyptic number.

It is an amenable number.

253066417 is a deficient number, since it is larger than the sum of its proper divisors (2064823).

253066417 is a wasteful number, since it uses less digits than its factorization.

253066417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 253066417 is about 15908.0613840908. The cubic root of 253066417 is about 632.5256944053.

The spelling of 253066417 in words is "two hundred fifty-three million, sixty-six thousand, four hundred seventeen".