42475757 has 4 divisors (see below), whose sum is σ = 42509280. Its totient is φ = 42442236.

The previous prime is 42475751. The next prime is 42475793. The reversal of 42475757 is 75757424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42475757 - 2⁸ = 42475501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42475751) 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, 14783 + ... + 17420.

It is an arithmetic number, because the mean of its divisors is an integer number (10627320).

Almost surely, 2^42475757 is an apocalyptic number.

It is an amenable number.

42475757 is a deficient number, since it is larger than the sum of its proper divisors (33523).

42475757 is a wasteful number, since it uses less digits than its factorization.

42475757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33522.

The product of its digits is 274400, while the sum is 41.

The square root of 42475757 is about 6517.3427867498. The cubic root of 42475757 is about 348.9102349029.

The spelling of 42475757 in words is "forty-two million, four hundred seventy-five thousand, seven hundred fifty-seven".