42756527 has 8 divisors (see below), whose sum is σ = 48252240. Its totient is φ = 37528960.

The previous prime is 42756523. The next prime is 42756529. The reversal of 42756527 is 72565724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42756527 - 2² = 42756523 is a prime.

It is a super-2 number, since 2×42756527² = 3656241202203458, which contains 22 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 (42756521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66698 + ... + 67335.

It is an arithmetic number, because the mean of its divisors is an integer number (6031530).

Almost surely, 2^42756527 is an apocalyptic number.

42756527 is a deficient number, since it is larger than the sum of its proper divisors (5495713).

42756527 is a wasteful number, since it uses less digits than its factorization.

42756527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134073.

The product of its digits is 117600, while the sum is 38.

The square root of 42756527 is about 6538.8475284258. The cubic root of 42756527 is about 349.6773271018.

The spelling of 42756527 in words is "forty-two million, seven hundred fifty-six thousand, five hundred twenty-seven".