63520030 has 64 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 20772864.

The previous prime is 63519977. The next prime is 63520031. The reversal of 63520030 is 3002536.

It is a super-2 number, since 2×63520030² = 8069588422401800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63520031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141246 + ... + 141694.

It is an arithmetic number, because the mean of its divisors is an integer number (2138400).

Almost surely, 2^63520030 is an apocalyptic number.

63520030 is an abundant number, since it is smaller than the sum of its proper divisors (73337570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63520030 is a wasteful number, since it uses less digits than its factorization.

63520030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 63520030 is about 7969.9454201393. The cubic root of 63520030 is about 398.9975523454.

Adding to 63520030 its reverse (3002536), we get a palindrome (66522566).

The spelling of 63520030 in words is "sixty-three million, five hundred twenty thousand, thirty".