52066786 has 4 divisors (see below), whose sum is σ = 78100182. Its totient is φ = 26033392.

The previous prime is 52066769. The next prime is 52066789. The reversal of 52066786 is 68766025.

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., 32433025 + 19633761 = 5695^2 + 4431^2 .

It is not an unprimeable number, because it can be changed into a prime (52066789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13016695 + ... + 13016698.

Almost surely, 2^52066786 is an apocalyptic number.

52066786 is a deficient number, since it is larger than the sum of its proper divisors (26033396).

52066786 is a wasteful number, since it uses less digits than its factorization.

52066786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26033395.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 52066786 is about 7215.7318409154. The cubic root of 52066786 is about 373.4108418649.

The spelling of 52066786 in words is "fifty-two million, sixty-six thousand, seven hundred eighty-six".