25353237529 has 3 divisors (see below), whose sum is σ = 25353396757. Its totient is φ = 25353078302.

The previous prime is 25353237523. The next prime is 25353237541. The reversal of 25353237529 is 92573235352.

The square root of 25353237529 is 159227.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 25353237529 - 2⁹ = 25353237017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25353237523) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 79614 + ... + 238840.

Almost surely, 2^25353237529 is an apocalyptic number.

25353237529 is the 159227-th square number.

25353237529 is the 79614-th centered octagonal number.

It is an amenable number.

25353237529 is a deficient number, since it is larger than the sum of its proper divisors (159228).

25353237529 is an frugal number, since it uses more digits than its factorization.

25353237529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318454 (or 159227 counting only the distinct ones).

The product of its digits is 1701000, while the sum is 46.

The spelling of 25353237529 in words is "twenty-five billion, three hundred fifty-three million, two hundred thirty-seven thousand, five hundred twenty-nine".