521360022 has 16 divisors (see below), whose sum is σ = 1043543232. Its totient is φ = 173649480.

The previous prime is 521360017. The next prime is 521360023. The reversal of 521360022 is 220063125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521360023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25908 + ... + 41399.

It is an arithmetic number, because the mean of its divisors is an integer number (65221452).

Almost surely, 2^521360022 is an apocalyptic number.

521360022 is an abundant number, since it is smaller than the sum of its proper divisors (522183210).

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

521360022 is a wasteful number, since it uses less digits than its factorization.

521360022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68603.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 521360022 is about 22833.3094841725. The cubic root of 521360022 is about 804.8456023731.

The spelling of 521360022 in words is "five hundred twenty-one million, three hundred sixty thousand, twenty-two".