513675730251 has 12 divisors (see below), whose sum is σ = 741989287312. Its totient is φ = 342444379536.

The previous prime is 513675730201. The next prime is 513675730273. The reversal of 513675730251 is 152037576315.

513675730251 is a `hidden beast` number, since 5 + 1 + 367 + 5 + 7 + 30 + 251 = 666.

It is not a de Polignac number, because 513675730251 - 2⁶ = 513675730187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513675730197 and 513675730206.

It is not an unprimeable number, because it can be changed into a prime (513675730201) 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, 56850 + ... + 1015176.

Almost surely, 2^513675730251 is an apocalyptic number.

513675730251 is a deficient number, since it is larger than the sum of its proper divisors (228313557061).

513675730251 is a wasteful number, since it uses less digits than its factorization.

513675730251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017890 (or 1017887 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 45.

The spelling of 513675730251 in words is "five hundred thirteen billion, six hundred seventy-five million, seven hundred thirty thousand, two hundred fifty-one".