506559045725 has 12 divisors (see below), whose sum is σ = 665082230004. Its totient is φ = 381409163520.

The previous prime is 506559045721. The next prime is 506559045763. The reversal of 506559045725 is 527540955605.

It can be written as a sum of positive squares in 6 ways, for example, as 1836893881 + 504722151844 = 42859^2 + 710438^2 .

It is not a de Polignac number, because 506559045725 - 2² = 506559045721 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506559045721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 595951394 + ... + 595952243.

It is an arithmetic number, because the mean of its divisors is an integer number (55423519167).

Almost surely, 2^506559045725 is an apocalyptic number.

It is an amenable number.

506559045725 is a deficient number, since it is larger than the sum of its proper divisors (158523184279).

506559045725 is a wasteful number, since it uses less digits than its factorization.

506559045725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191903664 (or 1191903659 counting only the distinct ones).

The product of its (nonzero) digits is 9450000, while the sum is 53.

The spelling of 506559045725 in words is "five hundred six billion, five hundred fifty-nine million, forty-five thousand, seven hundred twenty-five".