20725015252 has 12 divisors (see below), whose sum is σ = 36299340000. Its totient is φ = 10353775256.

The previous prime is 20725015193. The next prime is 20725015277. The reversal of 20725015252 is 25251052702.

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 3 ways as a sum of consecutive naturals, for example, 2177752 + ... + 2187247.

It is an arithmetic number, because the mean of its divisors is an integer number (3024945000).

Almost surely, 2^20725015252 is an apocalyptic number.

It is an amenable number.

20725015252 is a deficient number, since it is larger than the sum of its proper divisors (15574324748).

20725015252 is a wasteful number, since it uses less digits than its factorization.

20725015252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366190 (or 4366188 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 31.

Adding to 20725015252 its reverse (25251052702), we get a palindrome (45976067954).

The spelling of 20725015252 in words is "twenty billion, seven hundred twenty-five million, fifteen thousand, two hundred fifty-two".