253856458 has 16 divisors (see below), whose sum is σ = 394377984. Its totient is φ = 122424480.

The previous prime is 253856443. The next prime is 253856483. The reversal of 253856458 is 854658352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12366 + ... + 25702.

It is an arithmetic number, because the mean of its divisors is an integer number (24648624).

Almost surely, 2^253856458 is an apocalyptic number.

253856458 is a deficient number, since it is larger than the sum of its proper divisors (140521526).

253856458 is a wasteful number, since it uses less digits than its factorization.

253856458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13677.

The product of its digits is 1152000, while the sum is 46.

The square root of 253856458 is about 15932.8735010355. The cubic root of 253856458 is about 633.1832320801.

It can be divided in two parts, 2538 and 56458, that added together give a triangular number (58996 = T₃₄₃).

The spelling of 253856458 in words is "two hundred fifty-three million, eight hundred fifty-six thousand, four hundred fifty-eight".