513001325 has 6 divisors (see below), whose sum is σ = 636121674. Its totient is φ = 410401040.

The previous prime is 513001303. The next prime is 513001327. The reversal of 513001325 is 523100315.

It can be written as a sum of positive squares in 3 ways, for example, as 120406729 + 392594596 = 10973^2 + 19814^2 .

It is not a de Polignac number, because 513001325 - 2²⁴ = 496224109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513001297 and 513001306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513001327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10260002 + ... + 10260051.

It is an arithmetic number, because the mean of its divisors is an integer number (106020279).

Almost surely, 2^513001325 is an apocalyptic number.

It is an amenable number.

513001325 is a deficient number, since it is larger than the sum of its proper divisors (123120349).

513001325 is a wasteful number, since it uses less digits than its factorization.

513001325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20520063 (or 20520058 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 513001325 is about 22649.5325558829. The cubic root of 513001325 is about 800.5211838230.

It can be divided in two parts, 51300 and 1325, that added together give a palindrome (52625).

The spelling of 513001325 in words is "five hundred thirteen million, one thousand, three hundred twenty-five".