42075257 has 8 divisors (see below), whose sum is σ = 50176896. Its totient is φ = 34496352.

The previous prime is 42075247. The next prime is 42075301. The reversal of 42075257 is 75257024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42075257 - 2⁸ = 42075001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42075217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130508 + ... + 130829.

It is an arithmetic number, because the mean of its divisors is an integer number (6272112).

Almost surely, 2^42075257 is an apocalyptic number.

It is an amenable number.

42075257 is a deficient number, since it is larger than the sum of its proper divisors (8101639).

42075257 is a wasteful number, since it uses less digits than its factorization.

42075257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261367.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 42075257 is about 6486.5443034022. The cubic root of 42075257 is about 347.8101559549.

The spelling of 42075257 in words is "forty-two million, seventy-five thousand, two hundred fifty-seven".