253012578 has 96 divisors (see below), whose sum is σ = 639063936. Its totient is φ = 66382848.

The previous prime is 253012577. The next prime is 253012583. The reversal of 253012578 is 875210352.

It is not an unprimeable number, because it can be changed into a prime (253012577) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1310850 + ... + 1311042.

It is an arithmetic number, because the mean of its divisors is an integer number (6656916).

Almost surely, 2^253012578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253012578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319531968).

253012578 is an abundant number, since it is smaller than the sum of its proper divisors (386051358).

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

253012578 is an equidigital number, since it uses as much as digits as its factorization.

253012578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 253012578 is about 15906.3691017152. The cubic root of 253012578 is about 632.4808353434.

The spelling of 253012578 in words is "two hundred fifty-three million, twelve thousand, five hundred seventy-eight".