18856053 has 6 divisors (see below), whose sum is σ = 27236534. Its totient is φ = 12570696.

The previous prime is 18856049. The next prime is 18856063. The reversal of 18856053 is 35065881.

It can be written as a sum of positive squares in only one way, i.e., 9474084 + 9381969 = 3078^2 + 3063^2 .

It is not a de Polignac number, because 18856053 - 2² = 18856049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18855999 and 18856017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18856063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1047550 + ... + 1047567.

Almost surely, 2^18856053 is an apocalyptic number.

It is an amenable number.

18856053 is a deficient number, since it is larger than the sum of its proper divisors (8380481).

18856053 is a wasteful number, since it uses less digits than its factorization.

18856053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095123 (or 2095120 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 18856053 is about 4342.3556970842. The cubic root of 18856053 is about 266.1645814728.

The spelling of 18856053 in words is "eighteen million, eight hundred fifty-six thousand, fifty-three".