42775455 has 16 divisors (see below), whose sum is σ = 68521824. Its totient is φ = 22786560.

The previous prime is 42775433. The next prime is 42775471. The reversal of 42775455 is 55457724.

It is not a de Polignac number, because 42775455 - 2⁹ = 42774943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23995 + ... + 25715.

It is an arithmetic number, because the mean of its divisors is an integer number (4282614).

Almost surely, 2^42775455 is an apocalyptic number.

42775455 is a deficient number, since it is larger than the sum of its proper divisors (25746369).

42775455 is a wasteful number, since it uses less digits than its factorization.

42775455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386.

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

The square root of 42775455 is about 6540.2947181301. The cubic root of 42775455 is about 349.7289193496.

The spelling of 42775455 in words is "forty-two million, seven hundred seventy-five thousand, four hundred fifty-five".