20030056547 has 2 divisors, whose sum is σ = 20030056548. Its totient is φ = 20030056546.

The previous prime is 20030056513. The next prime is 20030056561. The reversal of 20030056547 is 74565003002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20030056547 - 2²² = 20025862243 is a prime.

It is not a weakly prime, because it can be changed into another prime (20030056507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015028273 + 10015028274.

It is an arithmetic number, because the mean of its divisors is an integer number (10015028274).

Almost surely, 2^20030056547 is an apocalyptic number.

20030056547 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030056547 is an equidigital number, since it uses as much as digits as its factorization.

20030056547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 32.

Adding to 20030056547 its reverse (74565003002), we get a palindrome (94595059549).

The spelling of 20030056547 in words is "twenty billion, thirty million, fifty-six thousand, five hundred forty-seven".