253242317450 has 24 divisors (see below), whose sum is σ = 473662183680. Its totient is φ = 100731018800.

The previous prime is 253242317423. The next prime is 253242317491. The reversal of 253242317450 is 54713242352.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14138666 + ... + 14156565.

It is an arithmetic number, because the mean of its divisors is an integer number (19735924320).

Almost surely, 2^253242317450 is an apocalyptic number.

253242317450 is a deficient number, since it is larger than the sum of its proper divisors (220419866230).

253242317450 is a wasteful number, since it uses less digits than its factorization.

253242317450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28295422 (or 28295417 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 253242317450 in words is "two hundred fifty-three billion, two hundred forty-two million, three hundred seventeen thousand, four hundred fifty".