115555651 has 4 divisors (see below), whose sum is σ = 116051832. Its totient is φ = 115059472.

The previous prime is 115555621. The next prime is 115555667. The reversal of 115555651 is 156555511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115555651 - 2¹⁷ = 115424579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115555621) 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, 247741 + ... + 248206.

It is an arithmetic number, because the mean of its divisors is an integer number (29012958).

Almost surely, 2^115555651 is an apocalyptic number.

115555651 is a deficient number, since it is larger than the sum of its proper divisors (496181).

115555651 is an equidigital number, since it uses as much as digits as its factorization.

115555651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496180.

The product of its digits is 18750, while the sum is 34.

The square root of 115555651 is about 10749.6814371404. The cubic root of 115555651 is about 487.0763723729.

The spelling of 115555651 in words is "one hundred fifteen million, five hundred fifty-five thousand, six hundred fifty-one".