422554661 has 4 divisors (see below), whose sum is σ = 444794400. Its totient is φ = 400314924.

The previous prime is 422554633. The next prime is 422554681. The reversal of 422554661 is 166455224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422554661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422554631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11119841 + ... + 11119878.

It is an arithmetic number, because the mean of its divisors is an integer number (111198600).

Almost surely, 2^422554661 is an apocalyptic number.

It is an amenable number.

422554661 is a deficient number, since it is larger than the sum of its proper divisors (22239739).

422554661 is a wasteful number, since it uses less digits than its factorization.

422554661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22239738.

The product of its digits is 57600, while the sum is 35.

The square root of 422554661 is about 20556.1343885469. The cubic root of 422554661 is about 750.4025459777.

The spelling of 422554661 in words is "four hundred twenty-two million, five hundred fifty-four thousand, six hundred sixty-one".