19485975 has 12 divisors (see below), whose sum is σ = 32216936. Its totient is φ = 10392480.

The previous prime is 19485959. The next prime is 19485979. The reversal of 19485975 is 57958491.

It is not a de Polignac number, because 19485975 - 2⁴ = 19485959 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 (19485979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129832 + ... + 129981.

Almost surely, 2^19485975 is an apocalyptic number.

19485975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19485975 is a deficient number, since it is larger than the sum of its proper divisors (12730961).

19485975 is a wasteful number, since it uses less digits than its factorization.

19485975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259826 (or 259821 counting only the distinct ones).

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

The square root of 19485975 is about 4414.2921289829. The cubic root of 19485975 is about 269.0960855918.

The spelling of 19485975 in words is "nineteen million, four hundred eighty-five thousand, nine hundred seventy-five".