155055424 has 14 divisors (see below), whose sum is σ = 307688234. Its totient is φ = 77527680.

The previous prime is 155055421. The next prime is 155055437. The reversal of 155055424 is 424550551.

155055424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 106502400 + 48553024 = 10320^2 + 6968^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155055421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1211307 + ... + 1211434.

It is an arithmetic number, because the mean of its divisors is an integer number (21977731).

Almost surely, 2^155055424 is an apocalyptic number.

It is an amenable number.

155055424 is a deficient number, since it is larger than the sum of its proper divisors (152632810).

155055424 is an equidigital number, since it uses as much as digits as its factorization.

155055424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422753 (or 2422743 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 155055424 is about 12452.1252804491. The cubic root of 155055424 is about 537.2325537333.

The spelling of 155055424 in words is "one hundred fifty-five million, fifty-five thousand, four hundred twenty-four".