25451628803 has 2 divisors, whose sum is σ = 25451628804. Its totient is φ = 25451628802.

The previous prime is 25451628767. The next prime is 25451628823. The reversal of 25451628803 is 30882615452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25451628803 - 2¹⁰ = 25451627779 is a prime.

It is not a weakly prime, because it can be changed into another prime (25451628823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12725814401 + 12725814402.

It is an arithmetic number, because the mean of its divisors is an integer number (12725814402).

Almost surely, 2^25451628803 is an apocalyptic number.

25451628803 is a deficient number, since it is larger than the sum of its proper divisors (1).

25451628803 is an equidigital number, since it uses as much as digits as its factorization.

25451628803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 25451628803 in words is "twenty-five billion, four hundred fifty-one million, six hundred twenty-eight thousand, eight hundred three".