422140055 has 8 divisors (see below), whose sum is σ = 512980800. Its totient is φ = 333436896.

The previous prime is 422140013. The next prime is 422140057. The reversal of 422140055 is 550041224.

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 422140055 - 2⁸ = 422139799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422140055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422140057) 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, 533960 + ... + 534749.

It is an arithmetic number, because the mean of its divisors is an integer number (64122600).

Almost surely, 2^422140055 is an apocalyptic number.

422140055 is a deficient number, since it is larger than the sum of its proper divisors (90840745).

422140055 is a wasteful number, since it uses less digits than its factorization.

422140055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068793.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 422140055 is about 20546.0471867462. The cubic root of 422140055 is about 750.1570367466.

Adding to 422140055 its reverse (550041224), we get a palindrome (972181279).

The spelling of 422140055 in words is "four hundred twenty-two million, one hundred forty thousand, fifty-five".