30325155 has 64 divisors (see below), whose sum is σ = 59996160. Its totient is φ = 12773376.

The previous prime is 30325151. The next prime is 30325189. The reversal of 30325155 is 55152303.

It is not a de Polignac number, because 30325155 - 2² = 30325151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30325151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69819 + ... + 70251.

It is an arithmetic number, because the mean of its divisors is an integer number (937440).

Almost surely, 2^30325155 is an apocalyptic number.

30325155 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30325155 is a deficient number, since it is larger than the sum of its proper divisors (29671005).

30325155 is a wasteful number, since it uses less digits than its factorization.

30325155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 30325155 is about 5506.8280343588. The cubic root of 30325155 is about 311.8418104233.

Adding to 30325155 its reverse (55152303), we get a palindrome (85477458).

The spelling of 30325155 in words is "thirty million, three hundred twenty-five thousand, one hundred fifty-five".