2261512255 has 8 divisors (see below), whose sum is σ = 2714537952. Its totient is φ = 1808727648.

The previous prime is 2261512247. The next prime is 2261512273. The reversal of 2261512255 is 5522151622.

It is a happy number.

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 2261512255 - 2³ = 2261512247 is a prime.

It is a super-2 number, since 2×2261512255² = 10228875359030370050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38947 + ... + 77716.

It is an arithmetic number, because the mean of its divisors is an integer number (339317244).

Almost surely, 2^2261512255 is an apocalyptic number.

2261512255 is a deficient number, since it is larger than the sum of its proper divisors (453025697).

2261512255 is a wasteful number, since it uses less digits than its factorization.

2261512255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120545.

The product of its digits is 12000, while the sum is 31.

The square root of 2261512255 is about 47555.3598977024. The cubic root of 2261512255 is about 1312.6017587619.

Adding to 2261512255 its reverse (5522151622), we get a palindrome (7783663877).

The spelling of 2261512255 in words is "two billion, two hundred sixty-one million, five hundred twelve thousand, two hundred fifty-five".