253515423 has 32 divisors (see below), whose sum is σ = 416586240. Its totient is φ = 133885440.

The previous prime is 253515413. The next prime is 253515433. The reversal of 253515423 is 324515352.

It is an interprime number because it is at equal distance from previous prime (253515413) and next prime (253515433).

It is not a de Polignac number, because 253515423 - 2⁵ = 253515391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253515403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8611 + ... + 24107.

It is an arithmetic number, because the mean of its divisors is an integer number (13018320).

Almost surely, 2^253515423 is an apocalyptic number.

253515423 is a deficient number, since it is larger than the sum of its proper divisors (163070817).

253515423 is a wasteful number, since it uses less digits than its factorization.

253515423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15567.

The product of its digits is 18000, while the sum is 30.

The square root of 253515423 is about 15922.1676602151. The cubic root of 253515423 is about 632.8995620413.

The spelling of 253515423 in words is "two hundred fifty-three million, five hundred fifteen thousand, four hundred twenty-three".