155605422 has 32 divisors (see below), whose sum is σ = 358278912. Its totient is φ = 44132544.

The previous prime is 155605409. The next prime is 155605451. The reversal of 155605422 is 224506551.

155605422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155605422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7768 + ... + 19275.

It is an arithmetic number, because the mean of its divisors is an integer number (11196216).

Almost surely, 2^155605422 is an apocalyptic number.

155605422 is an abundant number, since it is smaller than the sum of its proper divisors (202673490).

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

155605422 is a wasteful number, since it uses less digits than its factorization.

155605422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27192.

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

The square root of 155605422 is about 12474.1902342397. The cubic root of 155605422 is about 537.8670110707.

The spelling of 155605422 in words is "one hundred fifty-five million, six hundred five thousand, four hundred twenty-two".