6501022049 has 4 divisors (see below), whose sum is σ = 6501452820. Its totient is φ = 6500591280.

The previous prime is 6501022043. The next prime is 6501022051. The reversal of 6501022049 is 9402201056.

It is a happy number.

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 3559912225 + 2941109824 = 59665^2 + 54232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6501022049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6501022043) 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, 191894 + ... + 223215.

It is an arithmetic number, because the mean of its divisors is an integer number (1625363205).

Almost surely, 2^6501022049 is an apocalyptic number.

It is an amenable number.

6501022049 is a deficient number, since it is larger than the sum of its proper divisors (430771).

6501022049 is a wasteful number, since it uses less digits than its factorization.

6501022049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430770.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6501022049 is about 80628.9157126648. The cubic root of 6501022049 is about 1866.3533889052.

The spelling of 6501022049 in words is "six billion, five hundred one million, twenty-two thousand, forty-nine".