522745648 has 40 divisors (see below), whose sum is σ = 1109393280. Its totient is φ = 237511680.

The previous prime is 522745637. The next prime is 522745697. The reversal of 522745648 is 846547225.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25248 + ... + 41023.

It is an arithmetic number, because the mean of its divisors is an integer number (27734832).

Almost surely, 2^522745648 is an apocalyptic number.

522745648 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

522745648 is an abundant number, since it is smaller than the sum of its proper divisors (586647632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522745648 is a wasteful number, since it uses less digits than its factorization.

522745648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66325 (or 66319 counting only the distinct ones).

The product of its digits is 537600, while the sum is 43.

The square root of 522745648 is about 22863.6315575632. The cubic root of 522745648 is about 805.5579882021.

The spelling of 522745648 in words is "five hundred twenty-two million, seven hundred forty-five thousand, six hundred forty-eight".