250505005 has 4 divisors (see below), whose sum is σ = 300606012. Its totient is φ = 200404000.

The previous prime is 250504997. The next prime is 250505041. The reversal of 250505005 is 500505052.

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 181764324 + 68740681 = 13482^2 + 8291^2 .

It is not a de Polignac number, because 250505005 - 2³ = 250504997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25050496 + ... + 25050505.

It is an arithmetic number, because the mean of its divisors is an integer number (75151503).

Almost surely, 2^250505005 is an apocalyptic number.

It is an amenable number.

250505005 is a deficient number, since it is larger than the sum of its proper divisors (50101007).

250505005 is an equidigital number, since it uses as much as digits as its factorization.

250505005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50101006.

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 250505005 is about 15827.3499045165. The cubic root of 250505005 is about 630.3844172716.

The spelling of 250505005 in words is "two hundred fifty million, five hundred five thousand, five".