253515430 has 64 divisors (see below), whose sum is σ = 554646528. Its totient is φ = 81544320.

The previous prime is 253515413. The next prime is 253515433. The reversal of 253515430 is 34515352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253515433) 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, 83845 + ... + 86815.

It is an arithmetic number, because the mean of its divisors is an integer number (8666352).

Almost surely, 2^253515430 is an apocalyptic number.

253515430 is an abundant number, since it is smaller than the sum of its proper divisors (301131098).

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

253515430 is a wasteful number, since it uses less digits than its factorization.

253515430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 253515430 is about 15922.1678800344. The cubic root of 253515430 is about 632.8995678665.

The spelling of 253515430 in words is "two hundred fifty-three million, five hundred fifteen thousand, four hundred thirty".