250552745 has 4 divisors (see below), whose sum is σ = 300663300. Its totient is φ = 200442192.

The previous prime is 250552733. The next prime is 250552747. The reversal of 250552745 is 547255052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66896041 + 183656704 = 8179^2 + 13552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250552745 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (250552747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25055270 + ... + 25055279.

It is an arithmetic number, because the mean of its divisors is an integer number (75165825).

Almost surely, 2^250552745 is an apocalyptic number.

It is an amenable number.

250552745 is a deficient number, since it is larger than the sum of its proper divisors (50110555).

250552745 is an equidigital number, since it uses as much as digits as its factorization.

250552745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50110554.

The product of its (nonzero) digits is 70000, while the sum is 35.

The square root of 250552745 is about 15828.8579815475. The cubic root of 250552745 is about 630.4244599054.

The spelling of 250552745 in words is "two hundred fifty million, five hundred fifty-two thousand, seven hundred forty-five".