115556263 has 4 divisors (see below), whose sum is σ = 117183888. Its totient is φ = 113928640.

The previous prime is 115556249. The next prime is 115556267. The reversal of 115556263 is 362655511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362655511 = 1567 ⋅231433.

It is a cyclic number.

It is not a de Polignac number, because 115556263 - 2¹³ = 115548071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115556267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813706 + ... + 813847.

It is an arithmetic number, because the mean of its divisors is an integer number (29295972).

Almost surely, 2^115556263 is an apocalyptic number.

115556263 is a deficient number, since it is larger than the sum of its proper divisors (1627625).

115556263 is an equidigital number, since it uses as much as digits as its factorization.

115556263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627624.

The product of its digits is 27000, while the sum is 34.

The square root of 115556263 is about 10749.7099030625. The cubic root of 115556263 is about 487.0772322478.

It can be divided in two parts, 1155562 and 63, that added together give a square (1155625 = 1075²).

The spelling of 115556263 in words is "one hundred fifteen million, five hundred fifty-six thousand, two hundred sixty-three".