18872053 has 2 divisors, whose sum is σ = 18872054. Its totient is φ = 18872052.

The previous prime is 18872041. The next prime is 18872059. The reversal of 18872053 is 35027881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18861649 + 10404 = 4343^2 + 102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18872053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18872059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9436026 + 9436027.

It is an arithmetic number, because the mean of its divisors is an integer number (9436027).

Almost surely, 2^18872053 is an apocalyptic number.

It is an amenable number.

18872053 is a deficient number, since it is larger than the sum of its proper divisors (1).

18872053 is an equidigital number, since it uses as much as digits as its factorization.

18872053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 18872053 is about 4344.1976244181. The cubic root of 18872053 is about 266.2398434119.

The spelling of 18872053 in words is "eighteen million, eight hundred seventy-two thousand, fifty-three".