63513001 has 2 divisors, whose sum is σ = 63513002. Its totient is φ = 63513000.

The previous prime is 63512983. The next prime is 63513013. The reversal of 63513001 is 10031536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40960000 + 22553001 = 6400^2 + 4749^2 .

It is a cyclic number.

It is not a de Polignac number, because 63513001 - 2¹⁵ = 63480233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63513001.

It is not a weakly prime, because it can be changed into another prime (63513061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31756500 + 31756501.

It is an arithmetic number, because the mean of its divisors is an integer number (31756501).

Almost surely, 2^63513001 is an apocalyptic number.

It is an amenable number.

63513001 is a deficient number, since it is larger than the sum of its proper divisors (1).

63513001 is an equidigital number, since it uses as much as digits as its factorization.

63513001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 63513001 is about 7969.5044387967. The cubic root of 63513001 is about 398.9828343777.

Adding to 63513001 its reverse (10031536), we get a palindrome (73544537).

The spelling of 63513001 in words is "sixty-three million, five hundred thirteen thousand, one".