19916053 has 2 divisors, whose sum is σ = 19916054. Its totient is φ = 19916052.

The previous prime is 19916051. The next prime is 19916087. The reversal of 19916053 is 35061991.

It is an a-pointer prime, because the next prime (19916087) can be obtained adding 19916053 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14799409 + 5116644 = 3847^2 + 2262^2 .

It is a cyclic number.

It is not a de Polignac number, because 19916053 - 2¹ = 19916051 is a prime.

Together with 19916051, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19916051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9958026 + 9958027.

It is an arithmetic number, because the mean of its divisors is an integer number (9958027).

Almost surely, 2^19916053 is an apocalyptic number.

It is an amenable number.

19916053 is a deficient number, since it is larger than the sum of its proper divisors (1).

19916053 is an equidigital number, since it uses as much as digits as its factorization.

19916053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 19916053 is about 4462.7405257308. The cubic root of 19916053 is about 271.0614503695.

The spelling of 19916053 in words is "nineteen million, nine hundred sixteen thousand, fifty-three".