42457755 has 64 divisors (see below), whose sum is σ = 76640256. Its totient is φ = 19968000.

The previous prime is 42457741. The next prime is 42457763. The reversal of 42457755 is 55775424.

It is not a de Polignac number, because 42457755 - 2⁷ = 42457627 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 324040 + ... + 324170.

It is an arithmetic number, because the mean of its divisors is an integer number (1197504).

Almost surely, 2^42457755 is an apocalyptic number.

42457755 is a deficient number, since it is larger than the sum of its proper divisors (34182501).

42457755 is a wasteful number, since it uses less digits than its factorization.

42457755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228.

The product of its digits is 196000, while the sum is 39.

The square root of 42457755 is about 6515.9615560560. The cubic root of 42457755 is about 348.8609364321.

The spelling of 42457755 in words is "forty-two million, four hundred fifty-seven thousand, seven hundred fifty-five".