42516351 has 24 divisors (see below), whose sum is σ = 64393056. Its totient is φ = 26980800.

The previous prime is 42516323. The next prime is 42516359. The reversal of 42516351 is 15361524.

42516351 is a `hidden beast` number, since 4 + 25 + 1 + 635 + 1 = 666.

It is not a de Polignac number, because 42516351 - 2⁷ = 42516223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42516359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60301 + ... + 61001.

It is an arithmetic number, because the mean of its divisors is an integer number (2683044).

Almost surely, 2^42516351 is an apocalyptic number.

42516351 is a deficient number, since it is larger than the sum of its proper divisors (21876705).

42516351 is a wasteful number, since it uses less digits than its factorization.

42516351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1020 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 42516351 is about 6520.4563490602. The cubic root of 42516351 is about 349.0213504616.

Adding to 42516351 its reverse (15361524), we get a palindrome (57877875).

The spelling of 42516351 in words is "forty-two million, five hundred sixteen thousand, three hundred fifty-one".