253242250 has 32 divisors (see below), whose sum is σ = 478550592. Its totient is φ = 100339600.

The previous prime is 253242247. The next prime is 253242271. The reversal of 253242250 is 52242352.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 15 ways as a sum of consecutive naturals, for example, 22017 + ... + 31483.

It is an arithmetic number, because the mean of its divisors is an integer number (14954706).

Almost surely, 2^253242250 is an apocalyptic number.

253242250 is a deficient number, since it is larger than the sum of its proper divisors (225308342).

253242250 is a wasteful number, since it uses less digits than its factorization.

253242250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9591 (or 9581 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 253242250 is about 15913.5869620900. The cubic root of 253242250 is about 632.6721554846.

The spelling of 253242250 in words is "two hundred fifty-three million, two hundred forty-two thousand, two hundred fifty".