155302252 has 12 divisors (see below), whose sum is σ = 310604560. Its totient is φ = 66558096.

The previous prime is 155302249. The next prime is 155302297. The reversal of 155302252 is 252203551.

It is a happy number.

155302252 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2773227 + ... + 2773282.

Almost surely, 2^155302252 is an apocalyptic number.

It is an amenable number.

155302252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

155302252 is a wasteful number, since it uses less digits than its factorization.

155302252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5546520 (or 5546518 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 155302252 is about 12462.0324185102. The cubic root of 155302252 is about 537.5174706418.

The spelling of 155302252 in words is "one hundred fifty-five million, three hundred two thousand, two hundred fifty-two".