56531065001 has 8 divisors (see below), whose sum is σ = 58488397320. Its totient is φ = 54574265088.

The previous prime is 56531064991. The next prime is 56531065043. The reversal of 56531065001 is 10056013565.

It can be written as a sum of positive squares in 4 ways, for example, as 21374440000 + 35156625001 = 146200^2 + 187501^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56531065001 is a prime.

It is a super-2 number, since 2×56531065001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56531065061) 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, 89255 + ... + 347891.

It is an arithmetic number, because the mean of its divisors is an integer number (7311049665).

Almost surely, 2^56531065001 is an apocalyptic number.

It is an amenable number.

56531065001 is a deficient number, since it is larger than the sum of its proper divisors (1957332319).

56531065001 is a wasteful number, since it uses less digits than its factorization.

56531065001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266203.

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 56531065001 its reverse (10056013565), we get a palindrome (66587078566).

The spelling of 56531065001 in words is "fifty-six billion, five hundred thirty-one million, sixty-five thousand, one".