25275738787 has 8 divisors (see below), whose sum is σ = 27275926496. Its totient is φ = 23283536832.

The previous prime is 25275738773. The next prime is 25275738793. The reversal of 25275738787 is 78783757252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25275738787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25275738727) 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 7 ways as a sum of consecutive naturals, for example, 1989858 + ... + 2002519.

It is an arithmetic number, because the mean of its divisors is an integer number (3409490812).

Almost surely, 2^25275738787 is an apocalyptic number.

25275738787 is a deficient number, since it is larger than the sum of its proper divisors (2000187709).

25275738787 is a wasteful number, since it uses less digits than its factorization.

25275738787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992877.

The product of its digits is 46099200, while the sum is 61.

The spelling of 25275738787 in words is "twenty-five billion, two hundred seventy-five million, seven hundred thirty-eight thousand, seven hundred eighty-seven".