155552022 has 32 divisors (see below), whose sum is σ = 346318560. Its totient is φ = 51753600.

The previous prime is 155552021. The next prime is 155552039. The reversal of 155552022 is 220255551.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155552021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30058 + ... + 34850.

It is an arithmetic number, because the mean of its divisors is an integer number (10822455).

Almost surely, 2^155552022 is an apocalyptic number.

155552022 is an abundant number, since it is smaller than the sum of its proper divisors (190766538).

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

155552022 is a wasteful number, since it uses less digits than its factorization.

155552022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405 (or 5399 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 155552022 is about 12472.0496310751. The cubic root of 155552022 is about 537.8054764013.

The spelling of 155552022 in words is "one hundred fifty-five million, five hundred fifty-two thousand, twenty-two".