20625776153 has 4 divisors (see below), whose sum is σ = 20651209488. Its totient is φ = 20600342820.

The previous prime is 20625776089. The next prime is 20625776179. The reversal of 20625776153 is 35167752602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20625776153 - 2⁶ = 20625776089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20625776183) 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 in 3 ways as a sum of consecutive naturals, for example, 12715451 + ... + 12717072.

It is an arithmetic number, because the mean of its divisors is an integer number (5162802372).

Almost surely, 2^20625776153 is an apocalyptic number.

It is an amenable number.

20625776153 is a deficient number, since it is larger than the sum of its proper divisors (25433335).

20625776153 is an equidigital number, since it uses as much as digits as its factorization.

20625776153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25433334.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 20625776153 in words is "twenty billion, six hundred twenty-five million, seven hundred seventy-six thousand, one hundred fifty-three".