42365505 has 64 divisors (see below), whose sum is σ = 85575168. Its totient is φ = 17418240.

The previous prime is 42365503. The next prime is 42365579. The reversal of 42365505 is 50556324.

It is not a de Polignac number, because 42365505 - 2¹ = 42365503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42365501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55587 + ... + 56343.

It is an arithmetic number, because the mean of its divisors is an integer number (1337112).

Almost surely, 2^42365505 is an apocalyptic number.

It is an amenable number.

42365505 is an abundant number, since it is smaller than the sum of its proper divisors (43209663).

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

42365505 is a wasteful number, since it uses less digits than its factorization.

42365505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 42365505 is about 6508.8789357308. The cubic root of 42365505 is about 348.6080909259.

The spelling of 42365505 in words is "forty-two million, three hundred sixty-five thousand, five hundred five".