52642586 has 4 divisors (see below), whose sum is σ = 78963882. Its totient is φ = 26321292.

The previous prime is 52642549. The next prime is 52642589. The reversal of 52642586 is 68524625.

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

It can be written as a sum of positive squares in only one way, i.e., 43309561 + 9333025 = 6581^2 + 3055^2 .

It is not an unprimeable number, because it can be changed into a prime (52642589) 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 as a sum of consecutive naturals, namely, 13160645 + ... + 13160648.

Almost surely, 2^52642586 is an apocalyptic number.

52642586 is a deficient number, since it is larger than the sum of its proper divisors (26321296).

52642586 is a wasteful number, since it uses less digits than its factorization.

52642586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26321295.

The product of its digits is 115200, while the sum is 38.

The square root of 52642586 is about 7255.5210701920. The cubic root of 52642586 is about 374.7822997161.

The spelling of 52642586 in words is "fifty-two million, six hundred forty-two thousand, five hundred eighty-six".