25652367321 has 16 divisors (see below), whose sum is σ = 39189820800. Its totient is φ = 14620808448.

The previous prime is 25652367319. The next prime is 25652367329. The reversal of 25652367321 is 12376325652.

It is not a de Polignac number, because 25652367321 - 2¹ = 25652367319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25652367329) 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 15 ways as a sum of consecutive naturals, for example, 1561936 + ... + 1578273.

It is an arithmetic number, because the mean of its divisors is an integer number (2449363800).

Almost surely, 2^25652367321 is an apocalyptic number.

25652367321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25652367321 is a deficient number, since it is larger than the sum of its proper divisors (13537453479).

25652367321 is a wasteful number, since it uses less digits than its factorization.

25652367321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140608.

The product of its digits is 453600, while the sum is 42.

The spelling of 25652367321 in words is "twenty-five billion, six hundred fifty-two million, three hundred sixty-seven thousand, three hundred twenty-one".