19907053 has 4 divisors (see below), whose sum is σ = 20549248. Its totient is φ = 19264860.

The previous prime is 19907039. The next prime is 19907057. The reversal of 19907053 is 35070991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35070991 = 257 ⋅136463.

It is a cyclic number.

It is not a de Polignac number, because 19907053 - 2¹³ = 19898861 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 (19907057) 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, 321051 + ... + 321112.

It is an arithmetic number, because the mean of its divisors is an integer number (5137312).

Almost surely, 2^19907053 is an apocalyptic number.

It is an amenable number.

19907053 is a deficient number, since it is larger than the sum of its proper divisors (642195).

19907053 is an equidigital number, since it uses as much as digits as its factorization.

19907053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642194.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 19907053 is about 4461.7320627756. The cubic root of 19907053 is about 271.0206136197.

The spelling of 19907053 in words is "nineteen million, nine hundred seven thousand, fifty-three".