25047288485 has 4 divisors (see below), whose sum is σ = 30056746188. Its totient is φ = 20037830784.

The previous prime is 25047288473. The next prime is 25047288503. The reversal of 25047288485 is 58488274052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4061130529 + 20986157956 = 63727^2 + 144866^2 .

It is a cyclic number.

It is not a de Polignac number, because 25047288485 - 2³⁰ = 23973546661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2504728844 + ... + 2504728853.

It is an arithmetic number, because the mean of its divisors is an integer number (7514186547).

Almost surely, 2^25047288485 is an apocalyptic number.

It is an amenable number.

25047288485 is a deficient number, since it is larger than the sum of its proper divisors (5009457703).

25047288485 is an equidigital number, since it uses as much as digits as its factorization.

25047288485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009457702.

The product of its (nonzero) digits is 5734400, while the sum is 53.

The spelling of 25047288485 in words is "twenty-five billion, forty-seven million, two hundred eighty-eight thousand, four hundred eighty-five".