63542525 has 6 divisors (see below), whose sum is σ = 78792762. Its totient is φ = 50834000.

The previous prime is 63542513. The next prime is 63542527. The reversal of 63542525 is 52524536.

It can be written as a sum of positive squares in 3 ways, for example, as 5812921 + 57729604 = 2411^2 + 7598^2 .

It is not a de Polignac number, because 63542525 - 2¹⁰ = 63541501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63542491 and 63542500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63542527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1270826 + ... + 1270875.

It is an arithmetic number, because the mean of its divisors is an integer number (13132127).

Almost surely, 2^63542525 is an apocalyptic number.

It is an amenable number.

63542525 is a deficient number, since it is larger than the sum of its proper divisors (15250237).

63542525 is a wasteful number, since it uses less digits than its factorization.

63542525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541711 (or 2541706 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 63542525 is about 7971.3565344927. The cubic root of 63542525 is about 399.0446471522.

The spelling of 63542525 in words is "sixty-three million, five hundred forty-two thousand, five hundred twenty-five".