2521061197 has 2 divisors, whose sum is σ = 2521061198. Its totient is φ = 2521061196.

The previous prime is 2521061171. The next prime is 2521061237. The reversal of 2521061197 is 7911601252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2477948841 + 43112356 = 49779^2 + 6566^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521061197 - 2¹⁵ = 2521028429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2521061117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260530598 + 1260530599.

It is an arithmetic number, because the mean of its divisors is an integer number (1260530599).

Almost surely, 2^2521061197 is an apocalyptic number.

It is an amenable number.

2521061197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521061197 is an equidigital number, since it uses as much as digits as its factorization.

2521061197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 2521061197 is about 50210.1702546406. The cubic root of 2521061197 is about 1361.0094144298.

The spelling of 2521061197 in words is "two billion, five hundred twenty-one million, sixty-one thousand, one hundred ninety-seven".