20553835031 has 2 divisors, whose sum is σ = 20553835032. Its totient is φ = 20553835030.

The previous prime is 20553835007. The next prime is 20553835037. The reversal of 20553835031 is 13053835502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20553835031 - 2⁶ = 20553834967 is a prime.

It is a super-2 number, since 2×20553835031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20553834982 and 20553835000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20553835037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10276917515 + 10276917516.

It is an arithmetic number, because the mean of its divisors is an integer number (10276917516).

Almost surely, 2^20553835031 is an apocalyptic number.

20553835031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20553835031 is an equidigital number, since it uses as much as digits as its factorization.

20553835031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 20553835031 in words is "twenty billion, five hundred fifty-three million, eight hundred thirty-five thousand, thirty-one".