52428899 has 4 divisors (see below), whose sum is σ = 52477536. Its totient is φ = 52380264.

The previous prime is 52428869. The next prime is 52428913. The reversal of 52428899 is 99882425.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52428899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52428869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22664 + ... + 24869.

It is an arithmetic number, because the mean of its divisors is an integer number (13119384).

Almost surely, 2^52428899 is an apocalyptic number.

52428899 is a deficient number, since it is larger than the sum of its proper divisors (48637).

52428899 is a wasteful number, since it uses less digits than its factorization.

52428899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48636.

The product of its digits is 414720, while the sum is 47.

The square root of 52428899 is about 7240.7802756333. The cubic root of 52428899 is about 374.2745060687.

It can be divided in two parts, 5242 and 8899, that added together give a palindrome (14141).

The spelling of 52428899 in words is "fifty-two million, four hundred twenty-eight thousand, eight hundred ninety-nine".