63537642 has 32 divisors (see below), whose sum is σ = 161366400. Its totient is φ = 18153504.

The previous prime is 63537613. The next prime is 63537647. The reversal of 63537642 is 24673536.

63537642 is a `hidden beast` number, since 6 + 3 + 5 + 3 + 7 + 642 = 666.

63537642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 63537597 and 63537606.

It is not an unprimeable number, because it can be changed into a prime (63537647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83667 + ... + 84422.

It is an arithmetic number, because the mean of its divisors is an integer number (5042700).

Almost surely, 2^63537642 is an apocalyptic number.

63537642 is an abundant number, since it is smaller than the sum of its proper divisors (97828758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63537642 is a wasteful number, since it uses less digits than its factorization.

63537642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168107 (or 168101 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 63537642 is about 7971.0502444785. The cubic root of 63537642 is about 399.0344252055.

The spelling of 63537642 in words is "sixty-three million, five hundred thirty-seven thousand, six hundred forty-two".