19959053 has 2 divisors, whose sum is σ = 19959054. Its totient is φ = 19959052.

The previous prime is 19959019. The next prime is 19959073. The reversal of 19959053 is 35095991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13823524 + 6135529 = 3718^2 + 2477^2 .

It is a cyclic number.

It is not a de Polignac number, because 19959053 - 2¹⁸ = 19696909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19959053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19959073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9979526 + 9979527.

It is an arithmetic number, because the mean of its divisors is an integer number (9979527).

Almost surely, 2^19959053 is an apocalyptic number.

It is an amenable number.

19959053 is a deficient number, since it is larger than the sum of its proper divisors (1).

19959053 is an equidigital number, since it uses as much as digits as its factorization.

19959053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54675, while the sum is 41.

The square root of 19959053 is about 4467.5555956250. Note that the first 4 decimals coincide. The cubic root of 19959053 is about 271.2563896645.

The spelling of 19959053 in words is "nineteen million, nine hundred fifty-nine thousand, fifty-three".