63625505 has 4 divisors (see below), whose sum is σ = 76350612. Its totient is φ = 50900400.

The previous prime is 63625487. The next prime is 63625537. The reversal of 63625505 is 50552636.

63625505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49056016 + 14569489 = 7004^2 + 3817^2 .

It is not a de Polignac number, because 63625505 - 2⁸ = 63625249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6362546 + ... + 6362555.

It is an arithmetic number, because the mean of its divisors is an integer number (19087653).

Almost surely, 2^63625505 is an apocalyptic number.

It is an amenable number.

63625505 is a deficient number, since it is larger than the sum of its proper divisors (12725107).

63625505 is a wasteful number, since it uses less digits than its factorization.

63625505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12725106.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 63625505 is about 7976.5597220857. The cubic root of 63625505 is about 399.2182753450.

The spelling of 63625505 in words is "sixty-three million, six hundred twenty-five thousand, five hundred five".