42550715 has 16 divisors (see below), whose sum is σ = 52005888. Its totient is φ = 33417216.

The previous prime is 42550691. The next prime is 42550723. The reversal of 42550715 is 51705524.

42550715 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 42550715 - 2²⁴ = 25773499 is a prime.

It is a super-2 number, since 2×42550715² = 3621126694022450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 71459 + ... + 72051.

It is an arithmetic number, because the mean of its divisors is an integer number (3250368).

Almost surely, 2^42550715 is an apocalyptic number.

42550715 is a deficient number, since it is larger than the sum of its proper divisors (9455173).

42550715 is a wasteful number, since it uses less digits than its factorization.

42550715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 42550715 is about 6523.0909084574. The cubic root of 42550715 is about 349.1153577437.

The spelling of 42550715 in words is "forty-two million, five hundred fifty thousand, seven hundred fifteen".