250220766 has 32 divisors (see below), whose sum is σ = 530352000. Its totient is φ = 78481440.

The previous prime is 250220731. The next prime is 250220767. The reversal of 250220766 is 667022052.

It is a super-2 number, since 2×250220766² = 125220863475253512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250220767) 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, 9621 + ... + 24351.

It is an arithmetic number, because the mean of its divisors is an integer number (16573500).

Almost surely, 2^250220766 is an apocalyptic number.

250220766 is an abundant number, since it is smaller than the sum of its proper divisors (280131234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250220766 is a wasteful number, since it uses less digits than its factorization.

250220766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14904.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 250220766 is about 15818.3679942022. The cubic root of 250220766 is about 630.1459022118.

It can be divided in two parts, 250220 and 766, that added together give a triangular number (250986 = T₇₀₈).

The spelling of 250220766 in words is "two hundred fifty million, two hundred twenty thousand, seven hundred sixty-six".