505625543249 has 4 divisors (see below), whose sum is σ = 505631637360. Its totient is φ = 505619449140.

The previous prime is 505625543239. The next prime is 505625543303. The reversal of 505625543249 is 942345526505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 942345526505 = 5 ⋅188469105301.

It is a cyclic number.

It is not a de Polignac number, because 505625543249 - 2¹⁶ = 505625477713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505625543197 and 505625543206.

It is not an unprimeable number, because it can be changed into a prime (505625543219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2920859 + ... + 3089120.

It is an arithmetic number, because the mean of its divisors is an integer number (126407909340).

Almost surely, 2^505625543249 is an apocalyptic number.

It is an amenable number.

505625543249 is a deficient number, since it is larger than the sum of its proper divisors (6094111).

505625543249 is an equidigital number, since it uses as much as digits as its factorization.

505625543249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094110.

The product of its (nonzero) digits is 6480000, while the sum is 50.

The spelling of 505625543249 in words is "five hundred five billion, six hundred twenty-five million, five hundred forty-three thousand, two hundred forty-nine".