253625745 has 8 divisors (see below), whose sum is σ = 405801216. Its totient is φ = 135267056.

The previous prime is 253625741. The next prime is 253625747. The reversal of 253625745 is 547526352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253625745 - 2² = 253625741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253625741) 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 7 ways as a sum of consecutive naturals, for example, 8454177 + ... + 8454206.

It is an arithmetic number, because the mean of its divisors is an integer number (50725152).

Almost surely, 2^253625745 is an apocalyptic number.

It is an amenable number.

253625745 is a deficient number, since it is larger than the sum of its proper divisors (152175471).

253625745 is a wasteful number, since it uses less digits than its factorization.

253625745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16908391.

The product of its digits is 252000, while the sum is 39.

The square root of 253625745 is about 15925.6316986172. The cubic root of 253625745 is about 632.9913547731.

The spelling of 253625745 in words is "two hundred fifty-three million, six hundred twenty-five thousand, seven hundred forty-five".