522418487 has 4 divisors (see below), whose sum is σ = 524894616. Its totient is φ = 519942360.

The previous prime is 522418459. The next prime is 522418493. The reversal of 522418487 is 784814225.

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 522418487 - 2¹⁴ = 522402103 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 (522418427) 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, 1237748 + ... + 1238169.

It is an arithmetic number, because the mean of its divisors is an integer number (131223654).

Almost surely, 2^522418487 is an apocalyptic number.

522418487 is a deficient number, since it is larger than the sum of its proper divisors (2476129).

522418487 is a wasteful number, since it uses less digits than its factorization.

522418487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476128.

The product of its digits is 143360, while the sum is 41.

The square root of 522418487 is about 22856.4758219635. The cubic root of 522418487 is about 805.3898999821.

The spelling of 522418487 in words is "five hundred twenty-two million, four hundred eighteen thousand, four hundred eighty-seven".