8539550907001 has 9 divisors (see below), whose sum is σ = 8549553782991. Its totient is φ = 8529559730832.

The previous prime is 8539550906993. The next prime is 8539550907023. The reversal of 8539550907001 is 1007090559358.

The square root of 8539550907001 is 2922251.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 241832815225 + 8297718091776 = 491765^2 + 2880576^2 .

It is not a de Polignac number, because 8539550907001 - 2³ = 8539550906993 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 8539550907001.

It is not an unprimeable number, because it can be changed into a prime (8539550907301) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4871391541 + ... + 4871393293.

Almost surely, 2^{8539550907001} is an apocalyptic number.

8539550907001 is the 2922251-st square number.

8539550907001 is the 1461126-th centered octagonal number.

It is an amenable number.

8539550907001 is a deficient number, since it is larger than the sum of its proper divisors (10002875990).

8539550907001 is an frugal number, since it uses more digits than its factorization.

8539550907001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840 (or 3420 counting only the distinct ones).

The product of its (nonzero) digits is 1701000, while the sum is 52.

The spelling of 8539550907001 in words is "eight trillion, five hundred thirty-nine billion, five hundred fifty million, nine hundred seven thousand, one".