522252040 has 64 divisors (see below), whose sum is σ = 1245864960. Its totient is φ = 196680960.

The previous prime is 522251999. The next prime is 522252041. The reversal of 522252040 is 40252225.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (522252041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40189 + ... + 51571.

It is an arithmetic number, because the mean of its divisors is an integer number (19466640).

Almost surely, 2^522252040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522252040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622932480).

522252040 is an abundant number, since it is smaller than the sum of its proper divisors (723612920).

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

522252040 is a wasteful number, since it uses less digits than its factorization.

522252040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11462 (or 11458 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 522252040 is about 22852.8343975096. The cubic root of 522252040 is about 805.3043561919.

The spelling of 522252040 in words is "five hundred twenty-two million, two hundred fifty-two thousand, forty".