63509942 has 8 divisors (see below), whose sum is σ = 98550000. Its totient is φ = 30659944.

The previous prime is 63509921. The next prime is 63509947. The reversal of 63509942 is 24990536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 63509896 and 63509905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63509947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547442 + ... + 547557.

It is an arithmetic number, because the mean of its divisors is an integer number (12318750).

Almost surely, 2^63509942 is an apocalyptic number.

63509942 is a deficient number, since it is larger than the sum of its proper divisors (35040058).

63509942 is a wasteful number, since it uses less digits than its factorization.

63509942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095030.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 63509942 is about 7969.3125174007. The cubic root of 63509942 is about 398.9764288226.

The spelling of 63509942 in words is "sixty-three million, five hundred nine thousand, nine hundred forty-two".