25654442365 has 16 divisors (see below), whose sum is σ = 32605176240. Its totient is φ = 19310986240.

The previous prime is 25654442327. The next prime is 25654442389. The reversal of 25654442365 is 56324445652.

It can be written as a sum of positive squares in 8 ways, for example, as 5720955769 + 19933486596 = 75637^2 + 141186^2 .

It is not a de Polignac number, because 25654442365 - 2⁷ = 25654442237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285291 + ... + 364279.

It is an arithmetic number, because the mean of its divisors is an integer number (2037823515).

Almost surely, 2^25654442365 is an apocalyptic number.

It is an amenable number.

25654442365 is a deficient number, since it is larger than the sum of its proper divisors (6950733875).

25654442365 is a wasteful number, since it uses less digits than its factorization.

25654442365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82832.

The product of its digits is 3456000, while the sum is 46.

The spelling of 25654442365 in words is "twenty-five billion, six hundred fifty-four million, four hundred forty-two thousand, three hundred sixty-five".