30255225 has 144 divisors (see below), whose sum is σ = 69709824. Its totient is φ = 11232000.

The previous prime is 30255167. The next prime is 30255229. The reversal of 30255225 is 52255203.

It is not a de Polignac number, because 30255225 - 2⁶ = 30255161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30255195 and 30255204.

It is not an unprimeable number, because it can be changed into a prime (30255229) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 975960 + ... + 975990.

It is an arithmetic number, because the mean of its divisors is an integer number (484096).

Almost surely, 2^30255225 is an apocalyptic number.

30255225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30255225 is an abundant number, since it is smaller than the sum of its proper divisors (39454599).

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

30255225 is a wasteful number, since it uses less digits than its factorization.

30255225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 30255225 is about 5500.4749794904. The cubic root of 30255225 is about 311.6019228696.

It can be divided in two parts, 30 and 255225, that added together give a triangular number (255255 = T₇₁₄).

The spelling of 30255225 in words is "thirty million, two hundred fifty-five thousand, two hundred twenty-five".