25827827803 has 4 divisors (see below), whose sum is σ = 25900994808. Its totient is φ = 25754660800.

The previous prime is 25827827801. The next prime is 25827827807. The reversal of 25827827803 is 30872872852.

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 25827827803 - 2¹ = 25827827801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25827827801) 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, 36582973 + ... + 36583678.

It is an arithmetic number, because the mean of its divisors is an integer number (6475248702).

Almost surely, 2^25827827803 is an apocalyptic number.

25827827803 is a deficient number, since it is larger than the sum of its proper divisors (73167005).

25827827803 is an equidigital number, since it uses as much as digits as its factorization.

25827827803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73167004.

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 25827827803 in words is "twenty-five billion, eight hundred twenty-seven million, eight hundred twenty-seven thousand, eight hundred three".