422747551 has 8 divisors (see below), whose sum is σ = 447817680. Its totient is φ = 397699968.

The previous prime is 422747543. The next prime is 422747569. The reversal of 422747551 is 155747224.

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 422747551 - 2³ = 422747543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422747551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422747531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47205 + ... + 55441.

It is an arithmetic number, because the mean of its divisors is an integer number (55977210).

Almost surely, 2^422747551 is an apocalyptic number.

422747551 is a deficient number, since it is larger than the sum of its proper divisors (25070129).

422747551 is a wasteful number, since it uses less digits than its factorization.

422747551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11273.

The product of its digits is 78400, while the sum is 37.

The square root of 422747551 is about 20560.8256400369. The cubic root of 422747551 is about 750.5167111902.

The spelling of 422747551 in words is "four hundred twenty-two million, seven hundred forty-seven thousand, five hundred fifty-one".