52019209 has 16 divisors (see below), whose sum is σ = 59351040. Its totient is φ = 45162000.

The previous prime is 52019203. The next prime is 52019213. The reversal of 52019209 is 90291025.

It is a cyclic number.

It is not a de Polignac number, because 52019209 - 2⁹ = 52018697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52019203) 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, 25974 + ... + 27904.

It is an arithmetic number, because the mean of its divisors is an integer number (3709440).

Almost surely, 2^52019209 is an apocalyptic number.

It is an amenable number.

52019209 is a deficient number, since it is larger than the sum of its proper divisors (7331831).

52019209 is a wasteful number, since it uses less digits than its factorization.

52019209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 52019209 is about 7212.4343324567. The cubic root of 52019209 is about 373.2970701562.

The spelling of 52019209 in words is "fifty-two million, nineteen thousand, two hundred nine".