8530201649 has 4 divisors (see below), whose sum is σ = 8532161136. Its totient is φ = 8528242164.

The previous prime is 8530201619. The next prime is 8530201657. The reversal of 8530201649 is 9461020358.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8530201649 - 2²⁴ = 8513424433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8530201619) 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, 973199 + ... + 981924.

It is an arithmetic number, because the mean of its divisors is an integer number (2133040284).

Almost surely, 2^8530201649 is an apocalyptic number.

It is an amenable number.

8530201649 is a deficient number, since it is larger than the sum of its proper divisors (1959487).

8530201649 is a wasteful number, since it uses less digits than its factorization.

8530201649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959486.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 8530201649 is about 92359.0907761656. The cubic root of 8530201649 is about 2043.2418058745.

The spelling of 8530201649 in words is "eight billion, five hundred thirty million, two hundred one thousand, six hundred forty-nine".