42825777 has 8 divisors (see below), whose sum is σ = 57180864. Its totient is φ = 28510608.

The previous prime is 42825763. The next prime is 42825781. The reversal of 42825777 is 77752824.

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

It is not a de Polignac number, because 42825777 - 2⁸ = 42825521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42825707) 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, 7378 + ... + 11835.

It is an arithmetic number, because the mean of its divisors is an integer number (7147608).

Almost surely, 2^42825777 is an apocalyptic number.

It is an amenable number.

42825777 is a deficient number, since it is larger than the sum of its proper divisors (14355087).

42825777 is a wasteful number, since it uses less digits than its factorization.

42825777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19959.

The product of its digits is 219520, while the sum is 42.

The square root of 42825777 is about 6544.1406616912. The cubic root of 42825777 is about 349.8660085742.

The spelling of 42825777 in words is "forty-two million, eight hundred twenty-five thousand, seven hundred seventy-seven".