2250655561 has 16 divisors (see below), whose sum is σ = 2871272448. Its totient is φ = 1712970000.

The previous prime is 2250655553. The next prime is 2250655607. The reversal of 2250655561 is 1655560522.

It is not a de Polignac number, because 2250655561 - 2³ = 2250655553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2250655561.

It is not an unprimeable number, because it can be changed into a prime (2250655531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336565 + ... + 343186.

It is an arithmetic number, because the mean of its divisors is an integer number (179454528).

Almost surely, 2^2250655561 is an apocalyptic number.

It is an amenable number.

2250655561 is a deficient number, since it is larger than the sum of its proper divisors (620616887).

2250655561 is a wasteful number, since it uses less digits than its factorization.

2250655561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679812.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 2250655561 is about 47441.0746189418. The cubic root of 2250655561 is about 1310.4979481428.

The spelling of 2250655561 in words is "two billion, two hundred fifty million, six hundred fifty-five thousand, five hundred sixty-one".