118856553 has 4 divisors (see below), whose sum is σ = 158475408. Its totient is φ = 79237700.

The previous prime is 118856513. The next prime is 118856557. The reversal of 118856553 is 355658811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355658811 = 3 ⋅118552937.

It is a cyclic number.

It is not a de Polignac number, because 118856553 - 2⁹ = 118856041 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (118856557) 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, 19809423 + ... + 19809428.

It is an arithmetic number, because the mean of its divisors is an integer number (39618852).

Almost surely, 2^118856553 is an apocalyptic number.

It is an amenable number.

118856553 is a deficient number, since it is larger than the sum of its proper divisors (39618855).

118856553 is an equidigital number, since it uses as much as digits as its factorization.

118856553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39618854.

The product of its digits is 144000, while the sum is 42.

The square root of 118856553 is about 10902.1352495738. The cubic root of 118856553 is about 491.6707551641.

The spelling of 118856553 in words is "one hundred eighteen million, eight hundred fifty-six thousand, five hundred fifty-three".