42505116 has 12 divisors (see below), whose sum is σ = 99178632. Its totient is φ = 14168368.

The previous prime is 42505103. The next prime is 42505121. The reversal of 42505116 is 61150524.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1771035 + ... + 1771058.

It is an arithmetic number, because the mean of its divisors is an integer number (8264886).

Almost surely, 2^42505116 is an apocalyptic number.

It is an amenable number.

42505116 is an abundant number, since it is smaller than the sum of its proper divisors (56673516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42505116 is a wasteful number, since it uses less digits than its factorization.

42505116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542100 (or 3542098 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 42505116 is about 6519.5947726833. The cubic root of 42505116 is about 348.9906046408.

The spelling of 42505116 in words is "forty-two million, five hundred five thousand, one hundred sixteen".