42551771 has 8 divisors (see below), whose sum is σ = 44484000. Its totient is φ = 40626432.

The previous prime is 42551759. The next prime is 42551777. The reversal of 42551771 is 17715524.

42551771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42551771 - 2¹⁴ = 42535387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42551777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14105 + ... + 16853.

It is an arithmetic number, because the mean of its divisors is an integer number (5560500).

Almost surely, 2^42551771 is an apocalyptic number.

42551771 is a deficient number, since it is larger than the sum of its proper divisors (1932229).

42551771 is a wasteful number, since it uses less digits than its factorization.

42551771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445.

The product of its digits is 9800, while the sum is 32.

The square root of 42551771 is about 6523.1718511779. The cubic root of 42551771 is about 349.1182457701.

The spelling of 42551771 in words is "forty-two million, five hundred fifty-one thousand, seven hundred seventy-one".