19972059 has 16 divisors (see below), whose sum is σ = 29681280. Its totient is φ = 11871360.

The previous prime is 19972037. The next prime is 19972063. The reversal of 19972059 is 95027991.

It is not a de Polignac number, because 19972059 - 2¹¹ = 19970011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19972059.

It is not an unprimeable number, because it can be changed into a prime (19972019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9337 + ... + 11274.

It is an arithmetic number, because the mean of its divisors is an integer number (1855080).

Almost surely, 2^19972059 is an apocalyptic number.

19972059 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19972059 is a deficient number, since it is larger than the sum of its proper divisors (9709221).

19972059 is a wasteful number, since it uses less digits than its factorization.

19972059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20650.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 19972059 is about 4469.0109644081. The cubic root of 19972059 is about 271.3152968443.

The spelling of 19972059 in words is "nineteen million, nine hundred seventy-two thousand, fifty-nine".