25551163375 has 8 divisors (see below), whose sum is σ = 31887852048. Its totient is φ = 20440930600.

The previous prime is 25551163373. The next prime is 25551163397. The reversal of 25551163375 is 57336115552.

It is not a de Polignac number, because 25551163375 - 2¹ = 25551163373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25551163373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102204529 + ... + 102204778.

It is an arithmetic number, because the mean of its divisors is an integer number (3985981506).

Almost surely, 2^25551163375 is an apocalyptic number.

25551163375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25551163375 is a deficient number, since it is larger than the sum of its proper divisors (6336688673).

25551163375 is an equidigital number, since it uses as much as digits as its factorization.

25551163375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204409322 (or 204409312 counting only the distinct ones).

The product of its digits is 472500, while the sum is 43.

The spelling of 25551163375 in words is "twenty-five billion, five hundred fifty-one million, one hundred sixty-three thousand, three hundred seventy-five".