25306240052 has 24 divisors (see below), whose sum is σ = 46897421760. Its totient is φ = 11907181440.

The previous prime is 25306240039. The next prime is 25306240109. The reversal of 25306240052 is 25004260352.

It is a junction number, because it is equal to n+sod(n) for n = 25306239997 and 25306240024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575777 + ... + 618167.

It is an arithmetic number, because the mean of its divisors is an integer number (1954059240).

Almost surely, 2^25306240052 is an apocalyptic number.

It is an amenable number.

25306240052 is a deficient number, since it is larger than the sum of its proper divisors (21591181708).

25306240052 is a wasteful number, since it uses less digits than its factorization.

25306240052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51191 (or 51189 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 25306240052 in words is "twenty-five billion, three hundred six million, two hundred forty thousand, fifty-two".