42551627 has 4 divisors (see below), whose sum is σ = 43134600. Its totient is φ = 41968656.

The previous prime is 42551611. The next prime is 42551647. The reversal of 42551627 is 72615524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42551627 - 2⁴ = 42551611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42551593 and 42551602.

It is not an unprimeable number, because it can be changed into a prime (42551647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291377 + ... + 291522.

It is an arithmetic number, because the mean of its divisors is an integer number (10783650).

Almost surely, 2^42551627 is an apocalyptic number.

42551627 is a deficient number, since it is larger than the sum of its proper divisors (582973).

42551627 is an equidigital number, since it uses as much as digits as its factorization.

42551627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582972.

The product of its digits is 16800, while the sum is 32.

The square root of 42551627 is about 6523.1608135934. The cubic root of 42551627 is about 349.1178519511.

The spelling of 42551627 in words is "forty-two million, five hundred fifty-one thousand, six hundred twenty-seven".