155325216 has 24 divisors (see below), whose sum is σ = 407728944. Its totient is φ = 51775040.

The previous prime is 155325193. The next prime is 155325253. The reversal of 155325216 is 612523551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808890 + ... + 809081.

It is an arithmetic number, because the mean of its divisors is an integer number (16988706).

Almost surely, 2^155325216 is an apocalyptic number.

155325216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155325216 is an abundant number, since it is smaller than the sum of its proper divisors (252403728).

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

155325216 is a wasteful number, since it uses less digits than its factorization.

155325216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617984 (or 1617976 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 155325216 is about 12462.9537429937. The cubic root of 155325216 is about 537.5439629446.

Adding to 155325216 its reverse (612523551), we get a palindrome (767848767).

The spelling of 155325216 in words is "one hundred fifty-five million, three hundred twenty-five thousand, two hundred sixteen".