63542516 has 6 divisors (see below), whose sum is σ = 111199410. Its totient is φ = 31771256.

The previous prime is 63542513. The next prime is 63542527. The reversal of 63542516 is 61524536.

It can be written as a sum of positive squares in only one way, i.e., 61152400 + 2390116 = 7820^2 + 1546^2 .

It is a super-2 number, since 2×63542516² = 8075302679220512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63542513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7942811 + ... + 7942818.

It is an arithmetic number, because the mean of its divisors is an integer number (18533235).

Almost surely, 2^63542516 is an apocalyptic number.

It is an amenable number.

63542516 is a deficient number, since it is larger than the sum of its proper divisors (47656894).

63542516 is a wasteful number, since it uses less digits than its factorization.

63542516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15885633 (or 15885631 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 63542516 is about 7971.3559699715. The cubic root of 63542516 is about 399.0446283123.

The spelling of 63542516 in words is "sixty-three million, five hundred forty-two thousand, five hundred sixteen".