422331551 has 8 divisors (see below), whose sum is σ = 428051520. Its totient is φ = 416621088.

The previous prime is 422331517. The next prime is 422331557. The reversal of 422331551 is 155133224.

It is a happy number.

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 422331551 - 2²⁶ = 355222687 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 422331551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422331557) 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, 156425 + ... + 159101.

It is an arithmetic number, because the mean of its divisors is an integer number (53506440).

Almost surely, 2^422331551 is an apocalyptic number.

422331551 is a deficient number, since it is larger than the sum of its proper divisors (5719969).

422331551 is a wasteful number, since it uses less digits than its factorization.

422331551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753.

The product of its digits is 3600, while the sum is 26.

The square root of 422331551 is about 20550.7068248272. The cubic root of 422331551 is about 750.2704512039.

Adding to 422331551 its reverse (155133224), we get a palindrome (577464775).

The spelling of 422331551 in words is "four hundred twenty-two million, three hundred thirty-one thousand, five hundred fifty-one".