25553007485 has 8 divisors (see below), whose sum is σ = 31411502136. Its totient is φ = 19943810560.

The previous prime is 25553007463. The next prime is 25553007569. The reversal of 25553007485 is 58470035552.

It can be written as a sum of positive squares in 4 ways, for example, as 199769956 + 25353237529 = 14134^2 + 159227^2 .

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

It is not a de Polignac number, because 25553007485 - 2¹² = 25553003389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 62324204 + ... + 62324613.

It is an arithmetic number, because the mean of its divisors is an integer number (3926437767).

Almost surely, 2^25553007485 is an apocalyptic number.

It is an amenable number.

25553007485 is a deficient number, since it is larger than the sum of its proper divisors (5858494651).

25553007485 is a wasteful number, since it uses less digits than its factorization.

25553007485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124648863.

The product of its (nonzero) digits is 840000, while the sum is 44.

The spelling of 25553007485 in words is "twenty-five billion, five hundred fifty-three million, seven thousand, four hundred eighty-five".