25696017234 has 32 divisors (see below), whose sum is σ = 57123497280. Its totient is φ = 8562153600.

The previous prime is 25696017233. The next prime is 25696017299. The reversal of 25696017234 is 43271069652.

25696017234 is a `hidden beast` number, since 2 + 5 + 6 + 9 + 601 + 7 + 2 + 34 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25696017234.

It is not an unprimeable number, because it can be changed into a prime (25696017233) 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, 60354 + ... + 234594.

It is an arithmetic number, because the mean of its divisors is an integer number (1785109290).

Almost surely, 2^25696017234 is an apocalyptic number.

25696017234 is an abundant number, since it is smaller than the sum of its proper divisors (31427480046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25696017234 is a wasteful number, since it uses less digits than its factorization.

25696017234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176983 (or 176977 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 25696017234 in words is "twenty-five billion, six hundred ninety-six million, seventeen thousand, two hundred thirty-four".