63330725 has 12 divisors (see below), whose sum is σ = 78773604. Its totient is φ = 50507520.

The previous prime is 63330721. The next prime is 63330727. The reversal of 63330725 is 52703336.

It can be written as a sum of positive squares in 6 ways, for example, as 961 + 63329764 = 31^2 + 7958^2 .

It is not a de Polignac number, because 63330725 - 2² = 63330721 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63330721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4667 + ... + 12183.

It is an arithmetic number, because the mean of its divisors is an integer number (6564467).

Almost surely, 2^63330725 is an apocalyptic number.

It is an amenable number.

63330725 is a deficient number, since it is larger than the sum of its proper divisors (15442879).

63330725 is a wasteful number, since it uses less digits than its factorization.

63330725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7864 (or 7859 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 63330725 is about 7958.0603792633. The cubic root of 63330725 is about 398.6007883069.

The spelling of 63330725 in words is "sixty-three million, three hundred thirty thousand, seven hundred twenty-five".