630524513 has 2 divisors, whose sum is σ = 630524514. Its totient is φ = 630524512.

The previous prime is 630524497. The next prime is 630524533. The reversal of 630524513 is 315425036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484308049 + 146216464 = 22007^2 + 12092^2 .

It is a cyclic number.

It is not a de Polignac number, because 630524513 - 2⁴ = 630524497 is a prime.

It is a super-2 number, since 2×630524513² = 795122322987774338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (630524533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315262256 + 315262257.

It is an arithmetic number, because the mean of its divisors is an integer number (315262257).

Almost surely, 2^630524513 is an apocalyptic number.

It is an amenable number.

630524513 is a deficient number, since it is larger than the sum of its proper divisors (1).

630524513 is an equidigital number, since it uses as much as digits as its factorization.

630524513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 630524513 is about 25110.2471712247. The cubic root of 630524513 is about 857.4997296477.

Adding to 630524513 its reverse (315425036), we get a palindrome (945949549).

The spelling of 630524513 in words is "six hundred thirty million, five hundred twenty-four thousand, five hundred thirteen".