63525533 has 2 divisors, whose sum is σ = 63525534. Its totient is φ = 63525532.

The previous prime is 63525509. The next prime is 63525547. The reversal of 63525533 is 33552536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32467204 + 31058329 = 5698^2 + 5573^2 .

It is a cyclic number.

It is not a de Polignac number, because 63525533 - 2²² = 59331229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63525533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63525503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31762766 + 31762767.

It is an arithmetic number, because the mean of its divisors is an integer number (31762767).

Almost surely, 2^63525533 is an apocalyptic number.

It is an amenable number.

63525533 is a deficient number, since it is larger than the sum of its proper divisors (1).

63525533 is an equidigital number, since it uses as much as digits as its factorization.

63525533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40500, while the sum is 32.

The square root of 63525533 is about 7970.2906471471. The cubic root of 63525533 is about 399.0090742760.

The spelling of 63525533 in words is "sixty-three million, five hundred twenty-five thousand, five hundred thirty-three".