52505999 has 24 divisors (see below), whose sum is σ = 66361680. Its totient is φ = 41174784.

The previous prime is 52505993. The next prime is 52506011. The reversal of 52505999 is 99950525.

52505999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52505999 - 2⁸ = 52505743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505993) 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 23 ways as a sum of consecutive naturals, for example, 88247 + ... + 88839.

It is an arithmetic number, because the mean of its divisors is an integer number (2765070).

Almost surely, 2^52505999 is an apocalyptic number.

52505999 is a deficient number, since it is larger than the sum of its proper divisors (13855681).

52505999 is a wasteful number, since it uses less digits than its factorization.

52505999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 182250, while the sum is 44.

The square root of 52505999 is about 7246.1023315987. The cubic root of 52505999 is about 374.4578809591.

The spelling of 52505999 in words is "fifty-two million, five hundred five thousand, nine hundred ninety-nine".