25850441903 has 16 divisors (see below), whose sum is σ = 31110482592. Its totient is φ = 21163584000.

The previous prime is 25850441879. The next prime is 25850441923. The reversal of 25850441903 is 30914405852.

It is not a de Polignac number, because 25850441903 - 2¹⁰ = 25850440879 is a prime.

It is a super-2 number, since 2×25850441903² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25850441923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2198678 + ... + 2210403.

It is an arithmetic number, because the mean of its divisors is an integer number (1944405162).

Almost surely, 2^25850441903 is an apocalyptic number.

25850441903 is a deficient number, since it is larger than the sum of its proper divisors (5260040689).

25850441903 is a wasteful number, since it uses less digits than its factorization.

25850441903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409146.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 25850441903 in words is "twenty-five billion, eight hundred fifty million, four hundred forty-one thousand, nine hundred three".