253745733 has 8 divisors (see below), whose sum is σ = 338545888. Its totient is φ = 169054704.

The previous prime is 253745731. The next prime is 253745747. The reversal of 253745733 is 337547352.

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

It is not a de Polignac number, because 253745733 - 2¹ = 253745731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253745691 and 253745700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253745731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21691 + ... + 31272.

It is an arithmetic number, because the mean of its divisors is an integer number (42318236).

Almost surely, 2^253745733 is an apocalyptic number.

It is an amenable number.

253745733 is a deficient number, since it is larger than the sum of its proper divisors (84800155).

253745733 is a wasteful number, since it uses less digits than its factorization.

253745733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54563.

The product of its digits is 264600, while the sum is 39.

The square root of 253745733 is about 15929.3983878865. The cubic root of 253745733 is about 633.0911598258.

The spelling of 253745733 in words is "two hundred fifty-three million, seven hundred forty-five thousand, seven hundred thirty-three".