155004452 has 24 divisors (see below), whose sum is σ = 284266752. Its totient is φ = 73814400.

The previous prime is 155004439. The next prime is 155004457. The reversal of 155004452 is 254400551.

It is not an unprimeable number, because it can be changed into a prime (155004457) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18677 + ... + 25667.

It is an arithmetic number, because the mean of its divisors is an integer number (11844448).

Almost surely, 2^155004452 is an apocalyptic number.

It is an amenable number.

155004452 is a deficient number, since it is larger than the sum of its proper divisors (129262300).

155004452 is a wasteful number, since it uses less digits than its factorization.

155004452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7259 (or 7257 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 155004452 is about 12450.0783933275. The cubic root of 155004452 is about 537.1736784008.

The spelling of 155004452 in words is "one hundred fifty-five million, four thousand, four hundred fifty-two".