20245925047 has 8 divisors (see below), whose sum is σ = 20525800320. Its totient is φ = 19966118400.

The previous prime is 20245925041. The next prime is 20245925087. The reversal of 20245925047 is 74052954202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20245925047 - 2²³ = 20237536439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20245925041) 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 7 ways as a sum of consecutive naturals, for example, 949479 + ... + 970567.

It is an arithmetic number, because the mean of its divisors is an integer number (2565725040).

Almost surely, 2^20245925047 is an apocalyptic number.

20245925047 is a deficient number, since it is larger than the sum of its proper divisors (279875273).

20245925047 is a wasteful number, since it uses less digits than its factorization.

20245925047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34313.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 20245925047 in words is "twenty billion, two hundred forty-five million, nine hundred twenty-five thousand, forty-seven".