155323250 has 32 divisors (see below), whose sum is σ = 296974080. Its totient is φ = 60802800.

The previous prime is 155323249. The next prime is 155323261. The reversal of 155323250 is 52323551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5141 + ... + 18359.

It is an arithmetic number, because the mean of its divisors is an integer number (9280440).

Almost surely, 2^155323250 is an apocalyptic number.

155323250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155323250 is a deficient number, since it is larger than the sum of its proper divisors (141650830).

155323250 is a wasteful number, since it uses less digits than its factorization.

155323250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13283 (or 13273 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 155323250 is about 12462.8748689859. The cubic root of 155323250 is about 537.5416949808.

The spelling of 155323250 in words is "one hundred fifty-five million, three hundred twenty-three thousand, two hundred fifty".