52640086 has 4 divisors (see below), whose sum is σ = 78960132. Its totient is φ = 26320042.

The previous prime is 52640083. The next prime is 52640101. The reversal of 52640086 is 68004625.

52640086 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (52640083) 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 as a sum of consecutive naturals, namely, 13160020 + ... + 13160023.

It is an arithmetic number, because the mean of its divisors is an integer number (19740033).

Almost surely, 2^52640086 is an apocalyptic number.

52640086 is a deficient number, since it is larger than the sum of its proper divisors (26320046).

52640086 is a wasteful number, since it uses less digits than its factorization.

52640086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26320045.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 52640086 is about 7255.3487855513. The cubic root of 52640086 is about 374.7763668098.

The spelling of 52640086 in words is "fifty-two million, six hundred forty thousand, eighty-six".