522237447 has 12 divisors (see below), whose sum is σ = 764968464. Its totient is φ = 343254240.

The previous prime is 522237437. The next prime is 522237487. The reversal of 522237447 is 744732225.

It is a happy number.

522237447 is a `hidden beast` number, since 522 + 23 + 74 + 47 = 666.

It is not a de Polignac number, because 522237447 - 2⁶ = 522237383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522237437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407998 + ... + 409275.

It is an arithmetic number, because the mean of its divisors is an integer number (63747372).

Almost surely, 2^522237447 is an apocalyptic number.

522237447 is a deficient number, since it is larger than the sum of its proper divisors (242731017).

522237447 is a wasteful number, since it uses less digits than its factorization.

522237447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817350 (or 817347 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 522237447 is about 22852.5151132211. The cubic root of 522237447 is about 805.2968553973.

The spelling of 522237447 in words is "five hundred twenty-two million, two hundred thirty-seven thousand, four hundred forty-seven".