25761448603 has 4 divisors (see below), whose sum is σ = 28103398488. Its totient is φ = 23419498720.

The previous prime is 25761448591. The next prime is 25761448613. The reversal of 25761448603 is 30684416752.

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

It is a cyclic number.

It is not a de Polignac number, because 25761448603 - 2⁵ = 25761448571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25761448613) 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, 1170974926 + ... + 1170974947.

It is an arithmetic number, because the mean of its divisors is an integer number (7025849622).

Almost surely, 2^25761448603 is an apocalyptic number.

25761448603 is a deficient number, since it is larger than the sum of its proper divisors (2341949885).

25761448603 is a wasteful number, since it uses less digits than its factorization.

25761448603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341949884.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 25761448603 in words is "twenty-five billion, seven hundred sixty-one million, four hundred forty-eight thousand, six hundred three".