422187553 has 8 divisors (see below), whose sum is σ = 426972672. Its totient is φ = 417411456.

The previous prime is 422187547. The next prime is 422187583. The reversal of 422187553 is 355781224.

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 422187553 - 2²⁵ = 388633121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422187533) 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, 142776 + ... + 145702.

It is an arithmetic number, because the mean of its divisors is an integer number (53371584).

Almost surely, 2^422187553 is an apocalyptic number.

It is an amenable number.

422187553 is a deficient number, since it is larger than the sum of its proper divisors (4785119).

422187553 is a wasteful number, since it uses less digits than its factorization.

422187553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511.

The product of its digits is 67200, while the sum is 37.

The square root of 422187553 is about 20547.2030456702. The cubic root of 422187553 is about 750.1851708712.

It can be divided in two parts, 422187 and 553, that added together give a triangular number (422740 = T₉₁₉).

The spelling of 422187553 in words is "four hundred twenty-two million, one hundred eighty-seven thousand, five hundred fifty-three".