19965075 has 24 divisors (see below), whose sum is σ = 35549808. Its totient is φ = 9828480.

The previous prime is 19965059. The next prime is 19965091. The reversal of 19965075 is 57056991.

It is an interprime number because it is at equal distance from previous prime (19965059) and next prime (19965091).

It is not a de Polignac number, because 19965075 - 2⁴ = 19965059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9264 + ... + 11213.

It is an arithmetic number, because the mean of its divisors is an integer number (1481242).

Almost surely, 2^19965075 is an apocalyptic number.

19965075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19965075 is a deficient number, since it is larger than the sum of its proper divisors (15584733).

19965075 is a wasteful number, since it uses less digits than its factorization.

19965075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20503 (or 20498 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 19965075 is about 4468.2295151436. The cubic root of 19965075 is about 271.2836678746.

The spelling of 19965075 in words is "nineteen million, nine hundred sixty-five thousand, seventy-five".