52039919 has 4 divisors (see below), whose sum is σ = 52121496. Its totient is φ = 51958344.

The previous prime is 52039909. The next prime is 52039927. The reversal of 52039919 is 91993025.

52039919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52039919 - 2⁴ = 52039903 is a prime.

It is a super-2 number, since 2×52039919² = 5416306339053122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52039909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39824 + ... + 41109.

It is an arithmetic number, because the mean of its divisors is an integer number (13030374).

Almost surely, 2^52039919 is an apocalyptic number.

52039919 is a deficient number, since it is larger than the sum of its proper divisors (81577).

52039919 is an equidigital number, since it uses as much as digits as its factorization.

52039919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81576.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 52039919 is about 7213.8699045658. The cubic root of 52039919 is about 373.3466028624.

The spelling of 52039919 in words is "fifty-two million, thirty-nine thousand, nine hundred nineteen".