42757955 has 4 divisors (see below), whose sum is σ = 51309552. Its totient is φ = 34206360.

The previous prime is 42757937. The next prime is 42757969. The reversal of 42757955 is 55975724.

42757955 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 42757955 - 2¹⁸ = 42495811 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, 4275791 + ... + 4275800.

It is an arithmetic number, because the mean of its divisors is an integer number (12827388).

Almost surely, 2^42757955 is an apocalyptic number.

42757955 is a deficient number, since it is larger than the sum of its proper divisors (8551597).

42757955 is an equidigital number, since it uses as much as digits as its factorization.

42757955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551596.

The product of its digits is 441000, while the sum is 44.

The square root of 42757955 is about 6538.9567210680. The cubic root of 42757955 is about 349.6812199473.

The spelling of 42757955 in words is "forty-two million, seven hundred fifty-seven thousand, nine hundred fifty-five".