42661527 has 16 divisors (see below), whose sum is σ = 60030720. Its totient is φ = 26894912.

The previous prime is 42661511. The next prime is 42661537. The reversal of 42661527 is 72516624.

It is not a de Polignac number, because 42661527 - 2⁴ = 42661511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42661537) 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, 2668 + ... + 9614.

It is an arithmetic number, because the mean of its divisors is an integer number (3751920).

Almost surely, 2^42661527 is an apocalyptic number.

42661527 is a deficient number, since it is larger than the sum of its proper divisors (17369193).

42661527 is a wasteful number, since it uses less digits than its factorization.

42661527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7062.

The product of its digits is 20160, while the sum is 33.

The square root of 42661527 is about 6531.5792117986. The cubic root of 42661527 is about 349.4181543549.

The spelling of 42661527 in words is "forty-two million, six hundred sixty-one thousand, five hundred twenty-seven".