255155420 has 48 divisors (see below), whose sum is σ = 595676928. Its totient is φ = 91169280.

The previous prime is 255155419. The next prime is 255155429. The reversal of 255155420 is 24551552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255155429) 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 15 ways as a sum of consecutive naturals, for example, 7769 + ... + 23888.

It is an arithmetic number, because the mean of its divisors is an integer number (12409936).

Almost surely, 2^255155420 is an apocalyptic number.

255155420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255155420 is an abundant number, since it is smaller than the sum of its proper divisors (340521508).

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

255155420 is a wasteful number, since it uses less digits than its factorization.

255155420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31710 (or 31708 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 255155420 is about 15973.5850703591. The cubic root of 255155420 is about 634.2613769016.

The spelling of 255155420 in words is "two hundred fifty-five million, one hundred fifty-five thousand, four hundred twenty".