25632000001 has 4 divisors (see below), whose sum is σ = 26515862100. Its totient is φ = 24748137904.

The previous prime is 25631999983. The next prime is 25632000011. The reversal of 25632000001 is 10000023652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5347119376 + 20284880625 = 73124^2 + 142425^2 .

It is a cyclic number.

It is not a de Polignac number, because 25632000001 - 2⁹ = 25631999489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25632000011) 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, 441931006 + ... + 441931063.

It is an arithmetic number, because the mean of its divisors is an integer number (6628965525).

Almost surely, 2^25632000001 is an apocalyptic number.

It is an amenable number.

25632000001 is a deficient number, since it is larger than the sum of its proper divisors (883862099).

25632000001 is an equidigital number, since it uses as much as digits as its factorization.

25632000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883862098.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 25632000001 its reverse (10000023652), we get a palindrome (35632023653).

The spelling of 25632000001 in words is "twenty-five billion, six hundred thirty-two million, one", and thus it is an aban number.