52642787 has 4 divisors (see below), whose sum is σ = 55413480. Its totient is φ = 49872096.

The previous prime is 52642781. The next prime is 52642813. The reversal of 52642787 is 78724625.

52642787 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 52642787 - 2¹⁰ = 52641763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52642781) 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, 1385318 + ... + 1385355.

It is an arithmetic number, because the mean of its divisors is an integer number (13853370).

Almost surely, 2^52642787 is an apocalyptic number.

52642787 is a deficient number, since it is larger than the sum of its proper divisors (2770693).

52642787 is a wasteful number, since it uses less digits than its factorization.

52642787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770692.

The product of its digits is 188160, while the sum is 41.

The square root of 52642787 is about 7255.5349216994. The cubic root of 52642787 is about 374.7827767136.

The spelling of 52642787 in words is "fifty-two million, six hundred forty-two thousand, seven hundred eighty-seven".