64775042 has 4 divisors (see below), whose sum is σ = 97162566. Its totient is φ = 32387520.

The previous prime is 64775041. The next prime is 64775057. The reversal of 64775042 is 24057746.

64775042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 48038761 + 16736281 = 6931^2 + 4091^2 .

It is a super-2 number, since 2×64775042² = 8391612132203528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64774993 and 64775011.

It is not an unprimeable number, because it can be changed into a prime (64775041) 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 as a sum of consecutive naturals, namely, 16193759 + ... + 16193762.

Almost surely, 2^64775042 is an apocalyptic number.

64775042 is a deficient number, since it is larger than the sum of its proper divisors (32387524).

64775042 is a wasteful number, since it uses less digits than its factorization.

64775042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32387523.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 64775042 is about 8048.2943534640. The cubic root of 64775042 is about 401.6081964288.

The spelling of 64775042 in words is "sixty-four million, seven hundred seventy-five thousand, forty-two".