42955047 has 12 divisors (see below), whose sum is σ = 62616840. Its totient is φ = 28373328.

The previous prime is 42955037. The next prime is 42955079. The reversal of 42955047 is 74055924.

It is not a de Polignac number, because 42955047 - 2¹⁵ = 42922279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42955027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20913 + ... + 22874.

It is an arithmetic number, because the mean of its divisors is an integer number (5218070).

Almost surely, 2^42955047 is an apocalyptic number.

42955047 is a deficient number, since it is larger than the sum of its proper divisors (19661793).

42955047 is a wasteful number, since it uses less digits than its factorization.

42955047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43902 (or 43899 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 42955047 is about 6554.0099938892. The cubic root of 42955047 is about 350.2176795540.

The spelling of 42955047 in words is "forty-two million, nine hundred fifty-five thousand, forty-seven".