42167505 has 16 divisors (see below), whose sum is σ = 67918464. Its totient is φ = 22339200.

The previous prime is 42167473. The next prime is 42167561. The reversal of 42167505 is 50576124.

It is not a de Polignac number, because 42167505 - 2⁵ = 42167473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7044 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (4244904).

Almost surely, 2^42167505 is an apocalyptic number.

It is an amenable number.

42167505 is a deficient number, since it is larger than the sum of its proper divisors (25750959).

42167505 is a wasteful number, since it uses less digits than its factorization.

42167505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18776.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 42167505 is about 6493.6511301424. The cubic root of 42167505 is about 348.0641561595.

The spelling of 42167505 in words is "forty-two million, one hundred sixty-seven thousand, five hundred five".