253315530 has 48 divisors (see below), whose sum is σ = 709286760. Its totient is φ = 62354304.

The previous prime is 253315501. The next prime is 253315541. The reversal of 253315530 is 35513352.

253315530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 75012921 + 178302609 = 8661^2 + 13353^2 .

It is a junction number, because it is equal to n+sod(n) for n = 253315494 and 253315503.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107085 + ... + 109424.

Almost surely, 2^253315530 is an apocalyptic number.

253315530 is an abundant number, since it is smaller than the sum of its proper divisors (455971230).

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

253315530 is a wasteful number, since it uses less digits than its factorization.

253315530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216535 (or 216532 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 253315530 is about 15915.8892305771. The cubic root of 253315530 is about 632.7331744554.

Adding to 253315530 its reverse (35513352), we get a palindrome (288828882).

The spelling of 253315530 in words is "two hundred fifty-three million, three hundred fifteen thousand, five hundred thirty".