19875495 has 16 divisors (see below), whose sum is σ = 32827392. Its totient is φ = 10258080.

The previous prime is 19875481. The next prime is 19875497. The reversal of 19875495 is 59457891.

It is not a de Polignac number, because 19875495 - 2⁸ = 19875239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19875497) 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, 20907 + ... + 21836.

It is an arithmetic number, because the mean of its divisors is an integer number (2051712).

Almost surely, 2^19875495 is an apocalyptic number.

19875495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19875495 is a deficient number, since it is larger than the sum of its proper divisors (12951897).

19875495 is a wasteful number, since it uses less digits than its factorization.

19875495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42782.

The product of its digits is 453600, while the sum is 48.

The square root of 19875495 is about 4458.1941411293. The cubic root of 19875495 is about 270.8773245044.

The spelling of 19875495 in words is "nineteen million, eight hundred seventy-five thousand, four hundred ninety-five".