155055544 has 32 divisors (see below), whose sum is σ = 333669600. Its totient is φ = 66170880.

The previous prime is 155055541. The next prime is 155055557. The reversal of 155055544 is 445550551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155055541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7752 + ... + 19240.

It is an arithmetic number, because the mean of its divisors is an integer number (10427175).

Almost surely, 2^155055544 is an apocalyptic number.

155055544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

155055544 is an abundant number, since it is smaller than the sum of its proper divisors (178614056).

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

155055544 is a wasteful number, since it uses less digits than its factorization.

155055544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11743 (or 11739 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 34.

The square root of 155055544 is about 12452.1300989028. The cubic root of 155055544 is about 537.2326923244.

The spelling of 155055544 in words is "one hundred fifty-five million, fifty-five thousand, five hundred forty-four".