253307753 has 4 divisors (see below), whose sum is σ = 266639760. Its totient is φ = 239975748.

The previous prime is 253307749. The next prime is 253307773. The reversal of 253307753 is 357703352.

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 253307753 - 2² = 253307749 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253307773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6665975 + ... + 6666012.

It is an arithmetic number, because the mean of its divisors is an integer number (66659940).

Almost surely, 2^253307753 is an apocalyptic number.

It is an amenable number.

253307753 is a deficient number, since it is larger than the sum of its proper divisors (13332007).

253307753 is a wasteful number, since it uses less digits than its factorization.

253307753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13332006.

The product of its (nonzero) digits is 66150, while the sum is 35.

The square root of 253307753 is about 15915.6449131036. The cubic root of 253307753 is about 632.7266992421.

The spelling of 253307753 in words is "two hundred fifty-three million, three hundred seven thousand, seven hundred fifty-three".