42516807 has 4 divisors (see below), whose sum is σ = 56689080. Its totient is φ = 28344536.

The previous prime is 42516781. The next prime is 42516829. The reversal of 42516807 is 70861524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42516807 - 2⁶ = 42516743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42516707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7086132 + ... + 7086137.

It is an arithmetic number, because the mean of its divisors is an integer number (14172270).

Almost surely, 2^42516807 is an apocalyptic number.

42516807 is a deficient number, since it is larger than the sum of its proper divisors (14172273).

42516807 is a wasteful number, since it uses less digits than its factorization.

42516807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14172272.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 42516807 is about 6520.4913158442. The cubic root of 42516807 is about 349.0225982417.

The spelling of 42516807 in words is "forty-two million, five hundred sixteen thousand, eight hundred seven".