253905713 has 4 divisors (see below), whose sum is σ = 254968320. Its totient is φ = 252843108.

The previous prime is 253905709. The next prime is 253905737. The reversal of 253905713 is 317509352.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253905713 - 2² = 253905709 is a prime.

It is a super-2 number, since 2×253905713² = 128936222188076738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253905313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530945 + ... + 531422.

It is an arithmetic number, because the mean of its divisors is an integer number (63742080).

Almost surely, 2^253905713 is an apocalyptic number.

It is an amenable number.

253905713 is a deficient number, since it is larger than the sum of its proper divisors (1062607).

253905713 is a wasteful number, since it uses less digits than its factorization.

253905713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062606.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 253905713 is about 15934.4191296702. The cubic root of 253905713 is about 633.2241809737.

The spelling of 253905713 in words is "two hundred fifty-three million, nine hundred five thousand, seven hundred thirteen".