25351123531403 has 16 divisors (see below), whose sum is σ = 25721375750400. Its totient is φ = 24983596091520.

The previous prime is 25351123531387. The next prime is 25351123531417. The reversal of 25351123531403 is 30413532115352.

It is a cyclic number.

It is not a de Polignac number, because 25351123531403 - 2⁴ = 25351123531387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25351123531463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24223925 + ... + 25248777.

It is an arithmetic number, because the mean of its divisors is an integer number (1607585984400).

Almost surely, 2^{25351123531403} is an apocalyptic number.

25351123531403 is a deficient number, since it is larger than the sum of its proper divisors (370252218997).

25351123531403 is a wasteful number, since it uses less digits than its factorization.

25351123531403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026182.

The product of its (nonzero) digits is 162000, while the sum is 38.

Adding to 25351123531403 its reverse (30413532115352), we get a palindrome (55764655646755).

The spelling of 25351123531403 in words is "twenty-five trillion, three hundred fifty-one billion, one hundred twenty-three million, five hundred thirty-one thousand, four hundred three".