63525530 has 32 divisors (see below), whose sum is σ = 116698320. Its totient is φ = 24893440.

The previous prime is 63525509. The next prime is 63525533. The reversal of 63525530 is 3552536.

It is a happy number.

63525530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 13667809 + 49857721 = 3697^2 + 7061^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63525493 and 63525502.

It is not an unprimeable number, because it can be changed into a prime (63525533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121670 + ... + 122190.

Almost surely, 2^63525530 is an apocalyptic number.

63525530 is a deficient number, since it is larger than the sum of its proper divisors (53172790).

63525530 is a wasteful number, since it uses less digits than its factorization.

63525530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 63525530 is about 7970.2904589482. The cubic root of 63525530 is about 399.0090679949.

The spelling of 63525530 in words is "sixty-three million, five hundred twenty-five thousand, five hundred thirty".