422401553 has 4 divisors (see below), whose sum is σ = 482744640. Its totient is φ = 362058468.

The previous prime is 422401547. The next prime is 422401621. The reversal of 422401553 is 355104224.

It is a happy number.

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 not a de Polignac number, because 422401553 - 2¹⁴ = 422385169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422400553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30171533 + ... + 30171546.

It is an arithmetic number, because the mean of its divisors is an integer number (120686160).

Almost surely, 2^422401553 is an apocalyptic number.

It is an amenable number.

422401553 is a deficient number, since it is larger than the sum of its proper divisors (60343087).

422401553 is an equidigital number, since it uses as much as digits as its factorization.

422401553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60343086.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 422401553 is about 20552.4099073564. The cubic root of 422401553 is about 750.3119016792.

Adding to 422401553 its reverse (355104224), we get a palindrome (777505777).

The spelling of 422401553 in words is "four hundred twenty-two million, four hundred one thousand, five hundred fifty-three".