422156550 has 48 divisors (see below), whose sum is σ = 1048272192. Its totient is φ = 112432800.

The previous prime is 422156531. The next prime is 422156561. The reversal of 422156550 is 55651224.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176865 + ... + 179235.

It is an arithmetic number, because the mean of its divisors is an integer number (21839004).

Almost surely, 2^422156550 is an apocalyptic number.

422156550 is an abundant number, since it is smaller than the sum of its proper divisors (626115642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422156550 is a wasteful number, since it uses less digits than its factorization.

422156550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573 (or 3568 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 422156550 is about 20546.4485982371. The cubic root of 422156550 is about 750.1668073421.

The spelling of 422156550 in words is "four hundred twenty-two million, one hundred fifty-six thousand, five hundred fifty".