522666827 has 4 divisors (see below), whose sum is σ = 526427160. Its totient is φ = 518906496.

The previous prime is 522666821. The next prime is 522666841. The reversal of 522666827 is 728666225.

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 522666827 - 2¹² = 522662731 is a prime.

It is a super-2 number, since 2×522666827² = 546361224092495858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522666821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1879958 + ... + 1880235.

It is an arithmetic number, because the mean of its divisors is an integer number (131606790).

Almost surely, 2^522666827 is an apocalyptic number.

522666827 is a deficient number, since it is larger than the sum of its proper divisors (3760333).

522666827 is a wasteful number, since it uses less digits than its factorization.

522666827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760332.

The product of its digits is 483840, while the sum is 44.

The square root of 522666827 is about 22861.9077725373. The cubic root of 522666827 is about 805.5174980976.

The spelling of 522666827 in words is "five hundred twenty-two million, six hundred sixty-six thousand, eight hundred twenty-seven".