250805085 has 16 divisors (see below), whose sum is σ = 402959040. Its totient is φ = 133205760.

The previous prime is 250805083. The next prime is 250805141. The reversal of 250805085 is 580508052.

It is not a de Polignac number, because 250805085 - 2¹ = 250805083 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250805081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31075 + ... + 38304.

It is an arithmetic number, because the mean of its divisors is an integer number (25184940).

Almost surely, 2^250805085 is an apocalyptic number.

It is an amenable number.

250805085 is a deficient number, since it is larger than the sum of its proper divisors (152153955).

250805085 is a wasteful number, since it uses less digits than its factorization.

250805085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69628.

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 250805085 is about 15836.8268602015. The cubic root of 250805085 is about 630.6360293732.

The spelling of 250805085 in words is "two hundred fifty million, eight hundred five thousand, eighty-five".