25660112633 has 4 divisors (see below), whose sum is σ = 26775769728. Its totient is φ = 24544455540.

The previous prime is 25660112603. The next prime is 25660112761. The reversal of 25660112633 is 33621106652.

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 a de Polignac number, because none of the positive numbers 2^k-25660112633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25660112593 and 25660112602.

It is not an unprimeable number, because it can be changed into a prime (25660112603) 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, 557828513 + ... + 557828558.

It is an arithmetic number, because the mean of its divisors is an integer number (6693942432).

Almost surely, 2^25660112633 is an apocalyptic number.

25660112633 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25660112633 is a deficient number, since it is larger than the sum of its proper divisors (1115657095).

25660112633 is a wasteful number, since it uses less digits than its factorization.

25660112633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115657094.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 25660112633 in words is "twenty-five billion, six hundred sixty million, one hundred twelve thousand, six hundred thirty-three".