42425755 has 4 divisors (see below), whose sum is σ = 50910912. Its totient is φ = 33940600.

The previous prime is 42425741. The next prime is 42425759. The reversal of 42425755 is 55752424.

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

It is not a de Polignac number, because 42425755 - 2⁷ = 42425627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42425755.

It is not an unprimeable number, because it can be changed into a prime (42425759) 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, 4242571 + ... + 4242580.

It is an arithmetic number, because the mean of its divisors is an integer number (12727728).

Almost surely, 2^42425755 is an apocalyptic number.

42425755 is a deficient number, since it is larger than the sum of its proper divisors (8485157).

42425755 is an equidigital number, since it uses as much as digits as its factorization.

42425755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485156.

The product of its digits is 56000, while the sum is 34.

The square root of 42425755 is about 6513.5055845528. The cubic root of 42425755 is about 348.7732700308.

The spelling of 42425755 in words is "forty-two million, four hundred twenty-five thousand, seven hundred fifty-five".