25312652819 has 8 divisors (see below), whose sum is σ = 25806485520. Its totient is φ = 24819421536.

The previous prime is 25312652791. The next prime is 25312652821. The reversal of 25312652819 is 91825621352.

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-25312652819 is a prime.

It is a super-2 number, since 2×25312652819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25312652819.

It is not an unprimeable number, because it can be changed into a prime (25312652899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64889 + ... + 234170.

It is an arithmetic number, because the mean of its divisors is an integer number (3225810690).

Almost surely, 2^25312652819 is an apocalyptic number.

25312652819 is a deficient number, since it is larger than the sum of its proper divisors (493832701).

25312652819 is a wasteful number, since it uses less digits than its factorization.

25312652819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300709.

The product of its digits is 259200, while the sum is 44.

The spelling of 25312652819 in words is "twenty-five billion, three hundred twelve million, six hundred fifty-two thousand, eight hundred nineteen".