42451355 has 4 divisors (see below), whose sum is σ = 50941632. Its totient is φ = 33961080.

The previous prime is 42451349. The next prime is 42451373. The reversal of 42451355 is 55315424.

42451355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42451355 - 2⁶ = 42451291 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4245131 + ... + 4245140.

It is an arithmetic number, because the mean of its divisors is an integer number (12735408).

Almost surely, 2^42451355 is an apocalyptic number.

42451355 is a deficient number, since it is larger than the sum of its proper divisors (8490277).

42451355 is an equidigital number, since it uses as much as digits as its factorization.

42451355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490276.

The product of its digits is 12000, while the sum is 29.

The square root of 42451355 is about 6515.4704358166. The cubic root of 42451355 is about 348.8434066766.

Adding to 42451355 its reverse (55315424), we get a palindrome (97766779).

The spelling of 42451355 in words is "forty-two million, four hundred fifty-one thousand, three hundred fifty-five".