253983513 has 12 divisors (see below), whose sum is σ = 393933840. Its totient is φ = 145133352.

The previous prime is 253983497. The next prime is 253983547. The reversal of 253983513 is 315389352.

It is not a de Polignac number, because 253983513 - 2⁴ = 253983497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253983563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 863743 + ... + 864036.

It is an arithmetic number, because the mean of its divisors is an integer number (32827820).

Almost surely, 2^253983513 is an apocalyptic number.

It is an amenable number.

253983513 is a deficient number, since it is larger than the sum of its proper divisors (139950327).

253983513 is a wasteful number, since it uses less digits than its factorization.

253983513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727796 (or 1727789 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 253983513 is about 15936.8601989225. The cubic root of 253983513 is about 633.2888503999.

The spelling of 253983513 in words is "two hundred fifty-three million, nine hundred eighty-three thousand, five hundred thirteen".