155055244 has 6 divisors (see below), whose sum is σ = 271346684. Its totient is φ = 77527620.

The previous prime is 155055233. The next prime is 155055247. The reversal of 155055244 is 442550551.

It is not an unprimeable number, because it can be changed into a prime (155055247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19381902 + ... + 19381909.

Almost surely, 2^155055244 is an apocalyptic number.

It is an amenable number.

155055244 is a deficient number, since it is larger than the sum of its proper divisors (116291440).

155055244 is a wasteful number, since it uses less digits than its factorization.

155055244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38763815 (or 38763813 counting only the distinct ones).

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

The square root of 155055244 is about 12452.1180527652. The cubic root of 155055244 is about 537.2323458466.

The spelling of 155055244 in words is "one hundred fifty-five million, fifty-five thousand, two hundred forty-four".