2526820197 has 16 divisors (see below), whose sum is σ = 3676565568. Its totient is φ = 1530910080.

The previous prime is 2526820193. The next prime is 2526820213. The reversal of 2526820197 is 7910286252.

It is not a de Polignac number, because 2526820197 - 2² = 2526820193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2526820193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108633 + ... + 129825.

It is an arithmetic number, because the mean of its divisors is an integer number (229785348).

Almost surely, 2^2526820197 is an apocalyptic number.

It is an amenable number.

2526820197 is a deficient number, since it is larger than the sum of its proper divisors (1149745371).

2526820197 is a wasteful number, since it uses less digits than its factorization.

2526820197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24820.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 2526820197 is about 50267.4864798311. The cubic root of 2526820197 is about 1362.0449694162.

The spelling of 2526820197 in words is "two billion, five hundred twenty-six million, eight hundred twenty thousand, one hundred ninety-seven".