52699993 has 4 divisors (see below), whose sum is σ = 52949968. Its totient is φ = 52450020.

The previous prime is 52699991. The next prime is 52700027. The reversal of 52699993 is 39999625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52699993 - 2¹ = 52699991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52699993.

It is not an unprimeable number, because it can be changed into a prime (52699991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124671 + ... + 125092.

It is an arithmetic number, because the mean of its divisors is an integer number (13237492).

Almost surely, 2^52699993 is an apocalyptic number.

It is an amenable number.

52699993 is a deficient number, since it is larger than the sum of its proper divisors (249975).

52699993 is a wasteful number, since it uses less digits than its factorization.

52699993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249974.

The product of its digits is 1180980, while the sum is 52.

The square root of 52699993 is about 7259.4760830242. The cubic root of 52699993 is about 374.9184842077.

The spelling of 52699993 in words is "fifty-two million, six hundred ninety-nine thousand, nine hundred ninety-three".