19685053 has 2 divisors, whose sum is σ = 19685054. Its totient is φ = 19685052.

The previous prime is 19685023. The next prime is 19685059. The reversal of 19685053 is 35058691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18344089 + 1340964 = 4283^2 + 1158^2 .

It is a cyclic number.

It is not a de Polignac number, because 19685053 - 2⁹ = 19684541 is a prime.

It is a super-2 number, since 2×19685053² = 775002623225618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19685059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9842526 + 9842527.

It is an arithmetic number, because the mean of its divisors is an integer number (9842527).

Almost surely, 2^19685053 is an apocalyptic number.

It is an amenable number.

19685053 is a deficient number, since it is larger than the sum of its proper divisors (1).

19685053 is an equidigital number, since it uses as much as digits as its factorization.

19685053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 19685053 is about 4436.7840830944. The cubic root of 19685053 is about 270.0093869622.

It can be divided in two parts, 1968 and 5053, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 19685053 in words is "nineteen million, six hundred eighty-five thousand, fifty-three".