42545079 has 12 divisors (see below), whose sum is σ = 63115416. Its totient is φ = 27596592.

The previous prime is 42545071. The next prime is 42545089. The reversal of 42545079 is 97054524.

42545079 is a `hidden beast` number, since 42 + 545 + 0 + 79 = 666.

It is not a de Polignac number, because 42545079 - 2³ = 42545071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42545071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63549 + ... + 64214.

It is an arithmetic number, because the mean of its divisors is an integer number (5259618).

Almost surely, 2^42545079 is an apocalyptic number.

42545079 is a deficient number, since it is larger than the sum of its proper divisors (20570337).

42545079 is a wasteful number, since it uses less digits than its factorization.

42545079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127806 (or 127803 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 42545079 is about 6522.6588903606. The cubic root of 42545079 is about 349.0999431885.

The spelling of 42545079 in words is "forty-two million, five hundred forty-five thousand, seventy-nine".