513556056007 has 4 divisors (see below), whose sum is σ = 513975972240. Its totient is φ = 513136139776.

The previous prime is 513556055981. The next prime is 513556056017. The reversal of 513556056007 is 700650655315.

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

It is a cyclic number.

It is not a de Polignac number, because 513556056007 - 2¹⁹ = 513555531719 is a prime.

It is a super-2 number, since 2×513556056007² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513556056017) 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, 209956282 + ... + 209958727.

It is an arithmetic number, because the mean of its divisors is an integer number (128493993060).

Almost surely, 2^513556056007 is an apocalyptic number.

513556056007 is a deficient number, since it is larger than the sum of its proper divisors (419916233).

513556056007 is a wasteful number, since it uses less digits than its factorization.

513556056007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419916232.

The product of its (nonzero) digits is 472500, while the sum is 43.

The spelling of 513556056007 in words is "five hundred thirteen billion, five hundred fifty-six million, fifty-six thousand, seven".