19952754529 has 2 divisors, whose sum is σ = 19952754530. Its totient is φ = 19952754528.

The previous prime is 19952754491. The next prime is 19952754589. The reversal of 19952754529 is 92545725991.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16116810304 + 3835944225 = 126952^2 + 61935^2 .

It is a cyclic number.

It is not a de Polignac number, because 19952754529 - 2¹¹ = 19952752481 is a prime.

It is a super-2 number, since 2×19952754529² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19952754589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9976377264 + 9976377265.

It is an arithmetic number, because the mean of its divisors is an integer number (9976377265).

Almost surely, 2^19952754529 is an apocalyptic number.

It is an amenable number.

19952754529 is a deficient number, since it is larger than the sum of its proper divisors (1).

19952754529 is an equidigital number, since it uses as much as digits as its factorization.

19952754529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206000, while the sum is 58.

The spelling of 19952754529 in words is "nineteen billion, nine hundred fifty-two million, seven hundred fifty-four thousand, five hundred twenty-nine".