253131424 has 48 divisors (see below), whose sum is σ = 613363968. Its totient is φ = 100138752.

The previous prime is 253131409. The next prime is 253131443. The reversal of 253131424 is 424131352.

253131424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40552 + ... + 46375.

It is an arithmetic number, because the mean of its divisors is an integer number (12778416).

Almost surely, 2^253131424 is an apocalyptic number.

It is an amenable number.

253131424 is an abundant number, since it is smaller than the sum of its proper divisors (360232544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253131424 is a wasteful number, since it uses less digits than its factorization.

253131424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86957 (or 86949 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 253131424 is about 15910.1044622592. The cubic root of 253131424 is about 632.5798502510.

Adding to 253131424 its reverse (424131352), we get a palindrome (677262776).

The spelling of 253131424 in words is "two hundred fifty-three million, one hundred thirty-one thousand, four hundred twenty-four".