20552433029 has 2 divisors, whose sum is σ = 20552433030. Its totient is φ = 20552433028.

The previous prime is 20552433007. The next prime is 20552433073. The reversal of 20552433029 is 92033425502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15036400129 + 5516032900 = 122623^2 + 74270^2 .

It is a cyclic number.

It is not a de Polignac number, because 20552433029 - 2⁸ = 20552432773 is a prime.

It is a super-2 number, since 2×20552433029² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20552433029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20552433229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10276216514 + 10276216515.

It is an arithmetic number, because the mean of its divisors is an integer number (10276216515).

Almost surely, 2^20552433029 is an apocalyptic number.

It is an amenable number.

20552433029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20552433029 is an equidigital number, since it uses as much as digits as its factorization.

20552433029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 20552433029 in words is "twenty billion, five hundred fifty-two million, four hundred thirty-three thousand, twenty-nine".