63525073 has 4 divisors (see below), whose sum is σ = 67261860. Its totient is φ = 59788288.

The previous prime is 63525071. The next prime is 63525083. The reversal of 63525073 is 37052536.

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 50936769 + 12588304 = 7137^2 + 3548^2 .

It is a cyclic number.

It is not a de Polignac number, because 63525073 - 2¹ = 63525071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63525071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868368 + ... + 1868401.

It is an arithmetic number, because the mean of its divisors is an integer number (16815465).

Almost surely, 2^63525073 is an apocalyptic number.

It is an amenable number.

63525073 is a deficient number, since it is larger than the sum of its proper divisors (3736787).

63525073 is a wasteful number, since it uses less digits than its factorization.

63525073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736786.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 63525073 is about 7970.2617899289. The cubic root of 63525073 is about 399.0081111744.

The spelling of 63525073 in words is "sixty-three million, five hundred twenty-five thousand, seventy-three".