20013725123625 has 64 divisors (see below), whose sum is σ = 35057555769600. Its totient is φ = 10111639449600.

The previous prime is 20013725123621. The next prime is 20013725123653. The reversal of 20013725123625 is 52632152731002.

It is not a de Polignac number, because 20013725123625 - 2² = 20013725123621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20013725123621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 149052019 + ... + 149186231.

It is an arithmetic number, because the mean of its divisors is an integer number (547774308900).

Almost surely, 2^{20013725123625} is an apocalyptic number.

20013725123625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20013725123625 is a deficient number, since it is larger than the sum of its proper divisors (15043830645975).

20013725123625 is a wasteful number, since it uses less digits than its factorization.

20013725123625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155179 (or 155169 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

Adding to 20013725123625 its reverse (52632152731002), we get a palindrome (72645877854627).

The spelling of 20013725123625 in words is "twenty trillion, thirteen billion, seven hundred twenty-five million, one hundred twenty-three thousand, six hundred twenty-five".