253544434 has 16 divisors (see below), whose sum is σ = 446806080. Its totient is φ = 106382160.

The previous prime is 253544429. The next prime is 253544453. The reversal of 253544434 is 434445352.

253544434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 253544434.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 442974 + ... + 443545.

It is an arithmetic number, because the mean of its divisors is an integer number (27925380).

Almost surely, 2^253544434 is an apocalyptic number.

253544434 is a deficient number, since it is larger than the sum of its proper divisors (193261646).

253544434 is a wasteful number, since it uses less digits than its factorization.

253544434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886545.

The product of its digits is 115200, while the sum is 34.

The square root of 253544434 is about 15923.0786596060. The cubic root of 253544434 is about 632.9237030431.

Adding to 253544434 its reverse (434445352), we get a palindrome (687989786).

The spelling of 253544434 in words is "two hundred fifty-three million, five hundred forty-four thousand, four hundred thirty-four".