155022450 has 96 divisors (see below), whose sum is σ = 428544000. Its totient is φ = 36763200.

The previous prime is 155022449. The next prime is 155022467. The reversal of 155022450 is 54220551.

It is a happy number.

155022450 is digitally balanced in base 3, 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 155022450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76551 + ... + 78549.

It is an arithmetic number, because the mean of its divisors is an integer number (4464000).

Almost surely, 2^155022450 is an apocalyptic number.

155022450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155022450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214272000).

155022450 is an abundant number, since it is smaller than the sum of its proper divisors (273521550).

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

155022450 is a wasteful number, since it uses less digits than its factorization.

155022450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072 (or 2067 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 155022450 is about 12450.8011790406. The cubic root of 155022450 is about 537.1944685083.

The spelling of 155022450 in words is "one hundred fifty-five million, twenty-two thousand, four hundred fifty".