42416725 has 12 divisors (see below), whose sum is σ = 56643076. Its totient is φ = 31322880.

The previous prime is 42416713. The next prime is 42416729. The reversal of 42416725 is 52761424.

42416725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1954404 + 40462321 = 1398^2 + 6361^2 .

It is not a de Polignac number, because 42416725 - 2¹⁷ = 42285653 is a prime.

It is a super-3 number, since 3×42416725³ (a number of 24 digits) contains 333 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 (42416729) 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 11 ways as a sum of consecutive naturals, for example, 64932 + ... + 65581.

Almost surely, 2^42416725 is an apocalyptic number.

It is an amenable number.

42416725 is a deficient number, since it is larger than the sum of its proper divisors (14226351).

42416725 is a wasteful number, since it uses less digits than its factorization.

42416725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130536 (or 130531 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 42416725 is about 6512.8123725469. The cubic root of 42416725 is about 348.7485236938.

The spelling of 42416725 in words is "forty-two million, four hundred sixteen thousand, seven hundred twenty-five".