513400522 has 16 divisors (see below), whose sum is σ = 784715400. Its totient is φ = 251850240.

The previous prime is 513400507. The next prime is 513400523. The reversal of 513400522 is 225004315.

It can be written as a sum of positive squares in 4 ways, for example, as 487482241 + 25918281 = 22079^2 + 5091^2 .

It is a junction number, because it is equal to n+sod(n) for n = 513400493 and 513400502.

It is not an unprimeable number, because it can be changed into a prime (513400523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44754 + ... + 55042.

Almost surely, 2^513400522 is an apocalyptic number.

513400522 is a deficient number, since it is larger than the sum of its proper divisors (271314878).

513400522 is a wasteful number, since it uses less digits than its factorization.

513400522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10761.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 513400522 is about 22658.3433198458. The cubic root of 513400522 is about 800.7287744498.

Adding to 513400522 its reverse (225004315), we get a palindrome (738404837).

The spelling of 513400522 in words is "five hundred thirteen million, four hundred thousand, five hundred twenty-two".