25275005500553 has 4 divisors (see below), whose sum is σ = 25275049024788. Its totient is φ = 25274961976320.

The previous prime is 25275005500501. The next prime is 25275005500583. The reversal of 25275005500553 is 35500550057252.

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 1669915231504 + 23605090269049 = 1292252^2 + 4858507^2 .

It is a cyclic number.

It is not a de Polignac number, because 25275005500553 - 2³⁴ = 25257825631369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25275005500583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20879108 + ... + 22056453.

It is an arithmetic number, because the mean of its divisors is an integer number (6318762256197).

Almost surely, 2^{25275005500553} is an apocalyptic number.

It is an amenable number.

25275005500553 is a deficient number, since it is larger than the sum of its proper divisors (43524235).

25275005500553 is an equidigital number, since it uses as much as digits as its factorization.

25275005500553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43524234.

The product of its (nonzero) digits is 1312500, while the sum is 44.

The spelling of 25275005500553 in words is "twenty-five trillion, two hundred seventy-five billion, five million, five hundred thousand, five hundred fifty-three".