2261550258 has 54 divisors (see below), whose sum is σ = 5391269247. Its totient is φ = 684645720.

The previous prime is 2261550211. The next prime is 2261550271. The reversal of 2261550258 is 8520551622.

It is a happy number.

2261550258 is a `hidden beast` number, since 22 + 61 + 550 + 25 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1130775129 + 1130775129 = 33627^2 + 33627^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33627.

It is a super-2 number, since 2×2261550258² = 10229219138919733128, which contains 22 as substring.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 2218873 + ... + 2219891.

Almost surely, 2^2261550258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2261550258

2261550258 is an abundant number, since it is smaller than the sum of its proper divisors (3129718989).

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

2261550258 is a wasteful number, since it uses less digits than its factorization.

2261550258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 2261550258 is about 47555.7594619201. The cubic root of 2261550258 is about 1312.6091111468.

The spelling of 2261550258 in words is "two billion, two hundred sixty-one million, five hundred fifty thousand, two hundred fifty-eight".