25324883861 has 4 divisors (see below), whose sum is σ = 26425965792. Its totient is φ = 24223801932.

The previous prime is 25324883849. The next prime is 25324883887. The reversal of 25324883861 is 16838842352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25324883861 - 2⁶ = 25324883797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25324883261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550540931 + ... + 550540976.

It is an arithmetic number, because the mean of its divisors is an integer number (6606491448).

Almost surely, 2^25324883861 is an apocalyptic number.

It is an amenable number.

25324883861 is a deficient number, since it is larger than the sum of its proper divisors (1101081931).

25324883861 is a wasteful number, since it uses less digits than its factorization.

25324883861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101081930.

The product of its digits is 2211840, while the sum is 50.

The spelling of 25324883861 in words is "twenty-five billion, three hundred twenty-four million, eight hundred eighty-three thousand, eight hundred sixty-one".