42506277 has 16 divisors (see below), whose sum is σ = 64516608. Its totient is φ = 24640880.

The previous prime is 42506267. The next prime is 42506279. The reversal of 42506277 is 77260524.

It is not a de Polignac number, because 42506277 - 2¹⁴ = 42489893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42506279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27243 + ... + 28760.

It is an arithmetic number, because the mean of its divisors is an integer number (4032288).

Almost surely, 2^42506277 is an apocalyptic number.

It is an amenable number.

42506277 is a deficient number, since it is larger than the sum of its proper divisors (22010331).

42506277 is a wasteful number, since it uses less digits than its factorization.

42506277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56040.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 42506277 is about 6519.6838113516. The cubic root of 42506277 is about 348.9937820968.

The spelling of 42506277 in words is "forty-two million, five hundred six thousand, two hundred seventy-seven".