20525051104 has 12 divisors (see below), whose sum is σ = 40408694424. Its totient is φ = 10262525536.

The previous prime is 20525051101. The next prime is 20525051137. The reversal of 20525051104 is 40115052502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525051101) by changing a digit.

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 as a sum of consecutive naturals, namely, 320703892 + ... + 320703955.

It is an arithmetic number, because the mean of its divisors is an integer number (3367391202).

Almost surely, 2^20525051104 is an apocalyptic number.

It is an amenable number.

20525051104 is a deficient number, since it is larger than the sum of its proper divisors (19883643320).

20525051104 is an equidigital number, since it uses as much as digits as its factorization.

20525051104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641407857 (or 641407849 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 20525051104 in words is "twenty billion, five hundred twenty-five million, fifty-one thousand, one hundred four".