19928053 has 4 divisors (see below), whose sum is σ = 20304108. Its totient is φ = 19552000.

The previous prime is 19928039. The next prime is 19928057. The reversal of 19928053 is 35082991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35082991 = 61 ⋅575131.

It can be written as a sum of positive squares in 2 ways, for example, as 13410244 + 6517809 = 3662^2 + 2553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19928053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19928057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187948 + ... + 188053.

It is an arithmetic number, because the mean of its divisors is an integer number (5076027).

Almost surely, 2^19928053 is an apocalyptic number.

It is an amenable number.

19928053 is a deficient number, since it is larger than the sum of its proper divisors (376055).

19928053 is an equidigital number, since it uses as much as digits as its factorization.

19928053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376054.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 19928053 is about 4464.0847886213. The cubic root of 19928053 is about 271.1158802363.

The spelling of 19928053 in words is "nineteen million, nine hundred twenty-eight thousand, fifty-three".