253442574 has 64 divisors (see below), whose sum is σ = 702190080. Its totient is φ = 65828160.

The previous prime is 253442569. The next prime is 253442591. The reversal of 253442574 is 475244352.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26319 + ... + 34634.

It is an arithmetic number, because the mean of its divisors is an integer number (10971720).

Almost surely, 2^253442574 is an apocalyptic number.

253442574 is an abundant number, since it is smaller than the sum of its proper divisors (448747506).

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

253442574 is a wasteful number, since it uses less digits than its factorization.

253442574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60982 (or 60976 counting only the distinct ones).

The product of its digits is 134400, while the sum is 36.

The square root of 253442574 is about 15919.8798362299. The cubic root of 253442574 is about 632.8389338862.

It can be divided in two parts, 253442 and 574, that added together give a square (254016 = 504²).

The spelling of 253442574 in words is "two hundred fifty-three million, four hundred forty-two thousand, five hundred seventy-four".