155125224 has 48 divisors (see below), whose sum is σ = 420746820. Its totient is φ = 51632640.

The previous prime is 155125211. The next prime is 155125231. The reversal of 155125224 is 422521551.

155125224 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 2 ways, for example, as 144432324 + 10692900 = 12018^2 + 3270^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70704 + ... + 72864.

Almost surely, 2^155125224 is an apocalyptic number.

It is an amenable number.

155125224 is an abundant number, since it is smaller than the sum of its proper divisors (265621596).

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

155125224 is a wasteful number, since it uses less digits than its factorization.

155125224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170 (or 3163 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 155125224 is about 12454.9276995091. The cubic root of 155125224 is about 537.3131554645.

Adding to 155125224 its reverse (422521551), we get a palindrome (577646775).

It can be divided in two parts, 15512 and 5224, that added together give a 4-th power (20736 = 12⁴).

The spelling of 155125224 in words is "one hundred fifty-five million, one hundred twenty-five thousand, two hundred twenty-four".