25145434432197 has 24 divisors (see below), whose sum is σ = 36469279566720. Its totient is φ = 16695407849760.

The previous prime is 25145434432127. The next prime is 25145434432201. The reversal of 25145434432197 is 79123443454152.

25145434432197 is a `hidden beast` number, since 2 + 5 + 1 + 4 + 5 + 4 + 3 + 443 + 2 + 197 = 666.

It is not a de Polignac number, because 25145434432197 - 2³⁰ = 25144360690373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25145434432127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3512329 + ... + 7913742.

It is an arithmetic number, because the mean of its divisors is an integer number (1519553315280).

Almost surely, 2^{25145434432197} is an apocalyptic number.

It is an amenable number.

25145434432197 is a deficient number, since it is larger than the sum of its proper divisors (11323845134523).

25145434432197 is a wasteful number, since it uses less digits than its factorization.

25145434432197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11427073 (or 11427070 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 25145434432197 in words is "twenty-five trillion, one hundred forty-five billion, four hundred thirty-four million, four hundred thirty-two thousand, one hundred ninety-seven".