250220997 has 24 divisors (see below), whose sum is σ = 397522944. Its totient is φ = 150702624.

The previous prime is 250220987. The next prime is 250221017. The reversal of 250220997 is 799022052.

250220997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 250220997 - 2⁴ = 250220981 is a prime.

It is a super-2 number, since 2×250220997² = 125221094679348018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250220987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17253 + ... + 28250.

It is an arithmetic number, because the mean of its divisors is an integer number (16563456).

Almost surely, 2^250220997 is an apocalyptic number.

It is an amenable number.

250220997 is a deficient number, since it is larger than the sum of its proper divisors (147301947).

250220997 is a wasteful number, since it uses less digits than its factorization.

250220997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45569 (or 45566 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 250220997 is about 15818.3752958387. The cubic root of 250220997 is about 630.1460961255.

The spelling of 250220997 in words is "two hundred fifty million, two hundred twenty thousand, nine hundred ninety-seven".