18056363053 has 4 divisors (see below), whose sum is σ = 18057806560. Its totient is φ = 18054919548.

The previous prime is 18056363029. The next prime is 18056363057. The reversal of 18056363053 is 35036365081.

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: 35036365081 = 2113 ⋅16581337.

It is a cyclic number.

It is not a de Polignac number, because 18056363053 - 2⁵ = 18056363021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18056362997 and 18056363015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18056363057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702825 + ... + 728062.

It is an arithmetic number, because the mean of its divisors is an integer number (4514451640).

Almost surely, 2^18056363053 is an apocalyptic number.

It is an amenable number.

18056363053 is a deficient number, since it is larger than the sum of its proper divisors (1443507).

18056363053 is a wasteful number, since it uses less digits than its factorization.

18056363053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443506.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 18056363053 in words is "eighteen billion, fifty-six million, three hundred sixty-three thousand, fifty-three".