2250529581 has 16 divisors (see below), whose sum is σ = 3182445504. Its totient is φ = 1409773824.

The previous prime is 2250529579. The next prime is 2250529591. The reversal of 2250529581 is 1859250522.

It is not a de Polignac number, because 2250529581 - 2¹ = 2250529579 is a prime.

It is a super-2 number, since 2×2250529581² = 10129766789912071122, 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 (2250529591) 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, 4731 + ... + 67256.

It is an arithmetic number, because the mean of its divisors is an integer number (198902844).

Almost surely, 2^2250529581 is an apocalyptic number.

It is an amenable number.

2250529581 is a deficient number, since it is larger than the sum of its proper divisors (931915923).

2250529581 is a wasteful number, since it uses less digits than its factorization.

2250529581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72620.

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 2250529581 is about 47439.7468479755. The cubic root of 2250529581 is about 1310.4734960654.

The spelling of 2250529581 in words is "two billion, two hundred fifty million, five hundred twenty-nine thousand, five hundred eighty-one".