522252001 has 4 divisors (see below), whose sum is σ = 529406212. Its totient is φ = 515097792.

The previous prime is 522251999. The next prime is 522252041. The reversal of 522252001 is 100252225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 360962001 + 161290000 = 18999^2 + 12700^2 .

It is a cyclic number.

It is not a de Polignac number, because 522252001 - 2¹ = 522251999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 522252001.

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 3 ways as a sum of consecutive naturals, for example, 3576996 + ... + 3577141.

It is an arithmetic number, because the mean of its divisors is an integer number (132351553).

Almost surely, 2^522252001 is an apocalyptic number.

It is an amenable number.

522252001 is a deficient number, since it is larger than the sum of its proper divisors (7154211).

522252001 is an equidigital number, since it uses as much as digits as its factorization.

522252001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7154210.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 522252001 is about 22852.8335442238. The cubic root of 522252001 is about 805.3043361462.

The spelling of 522252001 in words is "five hundred twenty-two million, two hundred fifty-two thousand, one".