250220749 has 8 divisors (see below), whose sum is σ = 261780480. Its totient is φ = 238717776.

The previous prime is 250220731. The next prime is 250220767. The reversal of 250220749 is 947022052.

250220749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (250220731) and next prime (250220767).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 250220749 - 2⁵ = 250220717 is a prime.

It is a super-2 number, since 2×250220749² = 125220846460242002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 250220749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250220779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5037 + ... + 22930.

It is an arithmetic number, because the mean of its divisors is an integer number (32722560).

Almost surely, 2^250220749 is an apocalyptic number.

It is an amenable number.

250220749 is a deficient number, since it is larger than the sum of its proper divisors (11559731).

250220749 is a wasteful number, since it uses less digits than its factorization.

250220749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28379.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 250220749 is about 15818.3674568522. The cubic root of 250220749 is about 630.1458879411.

The spelling of 250220749 in words is "two hundred fifty million, two hundred twenty thousand, seven hundred forty-nine".