25153625605 has 4 divisors (see below), whose sum is σ = 30184350732. Its totient is φ = 20122900480.

The previous prime is 25153625557. The next prime is 25153625617. The reversal of 25153625605 is 50652635152.

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 18183713409 + 6969912196 = 134847^2 + 83486^2 .

It is not a de Polignac number, because 25153625605 - 2¹³ = 25153617413 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2515362556 + ... + 2515362565.

It is an arithmetic number, because the mean of its divisors is an integer number (7546087683).

Almost surely, 2^25153625605 is an apocalyptic number.

It is an amenable number.

25153625605 is a deficient number, since it is larger than the sum of its proper divisors (5030725127).

25153625605 is an equidigital number, since it uses as much as digits as its factorization.

25153625605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030725126.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 25153625605 in words is "twenty-five billion, one hundred fifty-three million, six hundred twenty-five thousand, six hundred five".