25628611603 has 8 divisors (see below), whose sum is σ = 30563313408. Its totient is φ = 21012277704.

The previous prime is 25628611487. The next prime is 25628611637. The reversal of 25628611603 is 30611682652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25628611603 - 2¹³ = 25628603411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25628671603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79591801 + ... + 79592122.

It is an arithmetic number, because the mean of its divisors is an integer number (3820414176).

Almost surely, 2^25628611603 is an apocalyptic number.

25628611603 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25628611603 is a deficient number, since it is larger than the sum of its proper divisors (4934701805).

25628611603 is a wasteful number, since it uses less digits than its factorization.

25628611603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159183953.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 25628611603 in words is "twenty-five billion, six hundred twenty-eight million, six hundred eleven thousand, six hundred three".