20054752913 has 12 divisors (see below), whose sum is σ = 22303021788. Its totient is φ = 18011747520.

The previous prime is 20054752897. The next prime is 20054752943. The reversal of 20054752913 is 31925745002.

It can be written as a sum of positive squares in 6 ways, for example, as 2402176144 + 17652576769 = 49012^2 + 132863^2 .

It is not a de Polignac number, because 20054752913 - 2⁴ = 20054752897 is a prime.

It is a super-2 number, since 2×20054752913² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20054752943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1597358 + ... + 1609863.

It is an arithmetic number, because the mean of its divisors is an integer number (1858585149).

Almost surely, 2^20054752913 is an apocalyptic number.

It is an amenable number.

20054752913 is a deficient number, since it is larger than the sum of its proper divisors (2248268875).

20054752913 is a wasteful number, since it uses less digits than its factorization.

20054752913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207284 (or 3207271 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 20054752913 in words is "twenty billion, fifty-four million, seven hundred fifty-two thousand, nine hundred thirteen".