63445042 has 4 divisors (see below), whose sum is σ = 95167566. Its totient is φ = 31722520.

The previous prime is 63445027. The next prime is 63445049. The reversal of 63445042 is 24054436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55666521 + 7778521 = 7461^2 + 2789^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63445042.

It is not an unprimeable number, because it can be changed into a prime (63445049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15861259 + ... + 15861262.

Almost surely, 2^63445042 is an apocalyptic number.

63445042 is a deficient number, since it is larger than the sum of its proper divisors (31722524).

63445042 is a wasteful number, since it uses less digits than its factorization.

63445042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31722523.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 63445042 is about 7965.2396071932. The cubic root of 63445042 is about 398.8404795285.

Adding to 63445042 its reverse (24054436), we get a palindrome (87499478).

The spelling of 63445042 in words is "sixty-three million, four hundred forty-five thousand, forty-two".