25633066197 has 16 divisors (see below), whose sum is σ = 35812638720. Its totient is φ = 16277320752.

The previous prime is 25633066187. The next prime is 25633066213. The reversal of 25633066197 is 79166033652.

It is not a de Polignac number, because 25633066197 - 2⁴ = 25633066181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25633066187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760693 + ... + 793674.

It is an arithmetic number, because the mean of its divisors is an integer number (2238289920).

Almost surely, 2^25633066197 is an apocalyptic number.

It is an amenable number.

25633066197 is a deficient number, since it is larger than the sum of its proper divisors (10179572523).

25633066197 is a wasteful number, since it uses less digits than its factorization.

25633066197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554632.

The product of its (nonzero) digits is 1224720, while the sum is 48.

The spelling of 25633066197 in words is "twenty-five billion, six hundred thirty-three million, sixty-six thousand, one hundred ninety-seven".