6572131249 has 2 divisors, whose sum is σ = 6572131250. Its totient is φ = 6572131248.

The previous prime is 6572131211. The next prime is 6572131261. The reversal of 6572131249 is 9421312756.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6527508849 + 44622400 = 80793^2 + 6680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6572131249 is a prime.

It is not a weakly prime, because it can be changed into another prime (6572131289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3286065624 + 3286065625.

It is an arithmetic number, because the mean of its divisors is an integer number (3286065625).

Almost surely, 2^6572131249 is an apocalyptic number.

It is an amenable number.

6572131249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6572131249 is an equidigital number, since it uses as much as digits as its factorization.

6572131249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 6572131249 is about 81068.6822947061. The cubic root of 6572131249 is about 1873.1335499901.

The spelling of 6572131249 in words is "six billion, five hundred seventy-two million, one hundred thirty-one thousand, two hundred forty-nine".