5240503664645 has 4 divisors (see below), whose sum is σ = 6288604397580. Its totient is φ = 4192402931712.

The previous prime is 5240503664611. The next prime is 5240503664689. The reversal of 5240503664645 is 5464663050425.

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 3834206520769 + 1406297143876 = 1958113^2 + 1185874^2 .

It is a cyclic number.

It is not a de Polignac number, because 5240503664645 - 2¹⁸ = 5240503402501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5240503664593 and 5240503664602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524050366460 + ... + 524050366469.

It is an arithmetic number, because the mean of its divisors is an integer number (1572151099395).

Almost surely, 2^{5240503664645} is an apocalyptic number.

It is an amenable number.

5240503664645 is a deficient number, since it is larger than the sum of its proper divisors (1048100732935).

5240503664645 is a wasteful number, since it uses less digits than its factorization.

5240503664645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048100732934.

The product of its (nonzero) digits is 10368000, while the sum is 50.

The spelling of 5240503664645 in words is "five trillion, two hundred forty billion, five hundred three million, six hundred sixty-four thousand, six hundred forty-five".