513250324522445 has 4 divisors (see below), whose sum is σ = 615900389426940. Its totient is φ = 410600259617952.

The previous prime is 513250324522373. The next prime is 513250324522447. The reversal of 513250324522445 is 544225423052315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 383964260140036 + 129286064382409 = 19595006^2 + 11370403^2 .

It is a cyclic number.

It is not a de Polignac number, because 513250324522445 - 2¹⁸ = 513250324260301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513250324522445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513250324522447) 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, 51325032452240 + ... + 51325032452249.

It is an arithmetic number, because the mean of its divisors is an integer number (153975097356735).

Almost surely, 2^{513250324522445} is an apocalyptic number.

It is an amenable number.

513250324522445 is a deficient number, since it is larger than the sum of its proper divisors (102650064904495).

513250324522445 is a wasteful number, since it uses less digits than its factorization.

513250324522445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102650064904494.

The product of its (nonzero) digits is 5760000, while the sum is 47.

The spelling of 513250324522445 in words is "five hundred thirteen trillion, two hundred fifty billion, three hundred twenty-four million, five hundred twenty-two thousand, four hundred forty-five".