155530256 has 40 divisors (see below), whose sum is σ = 345346944. Its totient is φ = 66470400.

The previous prime is 155530253. The next prime is 155530267. The reversal of 155530256 is 652035551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155530253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43181 + ... + 46643.

Almost surely, 2^155530256 is an apocalyptic number.

155530256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155530256 is an abundant number, since it is smaller than the sum of its proper divisors (189816688).

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

155530256 is a wasteful number, since it uses less digits than its factorization.

155530256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 155530256 is about 12471.1770094085. The cubic root of 155530256 is about 537.7803906457.

The spelling of 155530256 in words is "one hundred fifty-five million, five hundred thirty thousand, two hundred fifty-six".