63525413 has 12 divisors (see below), whose sum is σ = 78244812. Its totient is φ = 51246720.

The previous prime is 63525383. The next prime is 63525419. The reversal of 63525413 is 31452536.

It can be written as a sum of positive squares in 2 ways, for example, as 40934404 + 22591009 = 6398^2 + 4753^2 .

It is not a de Polignac number, because 63525413 - 2¹² = 63521317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63525419) 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, 37298 + ... + 38963.

It is an arithmetic number, because the mean of its divisors is an integer number (6520401).

Almost surely, 2^63525413 is an apocalyptic number.

It is an amenable number.

63525413 is a deficient number, since it is larger than the sum of its proper divisors (14719399).

63525413 is a wasteful number, since it uses less digits than its factorization.

63525413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76292 (or 76285 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 63525413 is about 7970.2831191872. The cubic root of 63525413 is about 399.0088230326.

Adding to 63525413 its reverse (31452536), we get a palindrome (94977949).

The spelling of 63525413 in words is "sixty-three million, five hundred twenty-five thousand, four hundred thirteen".