63042581 has 16 divisors (see below), whose sum is σ = 73782144. Its totient is φ = 52752384.

The previous prime is 63042569. The next prime is 63042583. The reversal of 63042581 is 18524036.

63042581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 63042581 - 2¹⁰ = 63041557 is a prime.

It is a super-2 number, since 2×63042581² = 7948734038283122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63042583) 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, 54101 + ... + 55253.

It is an arithmetic number, because the mean of its divisors is an integer number (4611384).

Almost surely, 2^63042581 is an apocalyptic number.

It is an amenable number.

63042581 is a deficient number, since it is larger than the sum of its proper divisors (10739563).

63042581 is a wasteful number, since it uses less digits than its factorization.

63042581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 63042581 is about 7939.9358309750. The cubic root of 63042581 is about 397.9953472853.

The spelling of 63042581 in words is "sixty-three million, forty-two thousand, five hundred eighty-one".