253015404 has 24 divisors (see below), whose sum is σ = 591037440. Its totient is φ = 84243024.

The previous prime is 253015379. The next prime is 253015409. The reversal of 253015404 is 404510352.

It is a super-2 number, since 2×253015404² = 128033589322566432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253015409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444 + ... + 22499.

It is an arithmetic number, because the mean of its divisors is an integer number (24626560).

Almost surely, 2^253015404 is an apocalyptic number.

It is an amenable number.

253015404 is an abundant number, since it is smaller than the sum of its proper divisors (338022036).

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

253015404 is a wasteful number, since it uses less digits than its factorization.

253015404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23869 (or 23867 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 253015404 is about 15906.4579338079. The cubic root of 253015404 is about 632.4831901462.

Adding to 253015404 its reverse (404510352), we get a palindrome (657525756).

The spelling of 253015404 in words is "two hundred fifty-three million, fifteen thousand, four hundred four".