63528065 has 16 divisors (see below), whose sum is σ = 82691280. Its totient is φ = 46663680.

The previous prime is 63528061. The next prime is 63528097. The reversal of 63528065 is 56082536.

It can be written as a sum of positive squares in 8 ways, for example, as 1874161 + 61653904 = 1369^2 + 7852^2 .

It is not a de Polignac number, because 63528065 - 2² = 63528061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63528061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5630 + ... + 12599.

It is an arithmetic number, because the mean of its divisors is an integer number (5168205).

Almost surely, 2^63528065 is an apocalyptic number.

It is an amenable number.

63528065 is a deficient number, since it is larger than the sum of its proper divisors (19163215).

63528065 is a wasteful number, since it uses less digits than its factorization.

63528065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18292.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 63528065 is about 7970.4494854431. The cubic root of 63528065 is about 399.0143754387.

The spelling of 63528065 in words is "sixty-three million, five hundred twenty-eight thousand, sixty-five".