522053999 has 4 divisors (see below), whose sum is σ = 524759136. Its totient is φ = 519348864.

The previous prime is 522053993. The next prime is 522054019. The reversal of 522053999 is 999350225.

It is a happy number.

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 522053999 - 2¹² = 522049903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522053993) 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, 1352279 + ... + 1352664.

It is an arithmetic number, because the mean of its divisors is an integer number (131189784).

Almost surely, 2^522053999 is an apocalyptic number.

522053999 is a deficient number, since it is larger than the sum of its proper divisors (2705137).

522053999 is a wasteful number, since it uses less digits than its factorization.

522053999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705136.

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 522053999 is about 22848.5010230431. The cubic root of 522053999 is about 805.2025512963.

The spelling of 522053999 in words is "five hundred twenty-two million, fifty-three thousand, nine hundred ninety-nine".