253313949 has 32 divisors (see below), whose sum is σ = 397393920. Its totient is φ = 140515200.

The previous prime is 253313933. The next prime is 253313971. The reversal of 253313949 is 949313352.

It is not a de Polignac number, because 253313949 - 2⁴ = 253313933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253313999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205164 + ... + 206394.

It is an arithmetic number, because the mean of its divisors is an integer number (12418560).

Almost surely, 2^253313949 is an apocalyptic number.

It is an amenable number.

253313949 is a deficient number, since it is larger than the sum of its proper divisors (144079971).

253313949 is a wasteful number, since it uses less digits than its factorization.

With its successor (253313950) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (1521).

253313949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521.

The product of its digits is 87480, while the sum is 39.

The square root of 253313949 is about 15915.8395631522. The cubic root of 253313949 is about 632.7318581086.

The spelling of 253313949 in words is "two hundred fifty-three million, three hundred thirteen thousand, nine hundred forty-nine".