522661001 has 8 divisors (see below), whose sum is σ = 549272064. Its totient is φ = 496707120.

The previous prime is 522660979. The next prime is 522661003. The reversal of 522661001 is 100166225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522661001 - 2²⁶ = 455552137 is a prime.

It is a super-3 number, since 3×522661001³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522661003) 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, 162665 + ... + 165846.

It is an arithmetic number, because the mean of its divisors is an integer number (68659008).

Almost surely, 2^522661001 is an apocalyptic number.

It is an amenable number.

522661001 is a deficient number, since it is larger than the sum of its proper divisors (26611063).

522661001 is a wasteful number, since it uses less digits than its factorization.

522661001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328591.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 522661001 is about 22861.7803549942. The cubic root of 522661001 is about 805.5145051378.

The spelling of 522661001 in words is "five hundred twenty-two million, six hundred sixty-one thousand, one".