2261544285 has 96 divisors (see below), whose sum is σ = 4945352832. Its totient is φ = 867525120.

The previous prime is 2261544277. The next prime is 2261544319. The reversal of 2261544285 is 5824451622.

It is not a de Polignac number, because 2261544285 - 2³ = 2261544277 is a prime.

It is a super-2 number, since 2×2261544285² = 10229165106032322450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 94347 + ... + 115863.

It is an arithmetic number, because the mean of its divisors is an integer number (51514092).

Almost surely, 2^2261544285 is an apocalyptic number.

It is an amenable number.

2261544285 is an abundant number, since it is smaller than the sum of its proper divisors (2683808547).

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

2261544285 is a wasteful number, since it uses less digits than its factorization.

2261544285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21563 (or 21556 counting only the distinct ones).

The product of its digits is 153600, while the sum is 39.

The square root of 2261544285 is about 47555.6966619142. The cubic root of 2261544285 is about 1312.6079555647.

The spelling of 2261544285 in words is "two billion, two hundred sixty-one million, five hundred forty-four thousand, two hundred eighty-five".