30925125 has 192 divisors, whose sum is σ = 76826880. Its totient is φ = 12096000.

The previous prime is 30925121. The next prime is 30925151. The reversal of 30925125 is 52152903.

30925125 = 21³ + 22³ + ... + 105³.

It is not a de Polignac number, because 30925125 - 2² = 30925121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30925121) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1819117 + ... + 1819133.

It is an arithmetic number, because the mean of its divisors is an integer number (400140).

Almost surely, 2^30925125 is an apocalyptic number.

30925125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30925125 is an abundant number, since it is smaller than the sum of its proper divisors (45901755).

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

30925125 is a wasteful number, since it uses less digits than its factorization.

30925125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 30925125 is about 5561.0363242835. The cubic root of 30925125 is about 313.8849464210.

The spelling of 30925125 in words is "thirty million, nine hundred twenty-five thousand, one hundred twenty-five".