30680125 has 24 divisors (see below), whose sum is σ = 44548920. Its totient is φ = 21033600.

The previous prime is 30680119. The next prime is 30680129. The reversal of 30680125 is 52108603.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1552516 + 29127609 = 1246^2 + 5397^2 .

It is not a de Polignac number, because 30680125 - 2⁷ = 30679997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 30680125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30680129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3621 + ... + 8629.

It is an arithmetic number, because the mean of its divisors is an integer number (1856205).

Almost surely, 2^30680125 is an apocalyptic number.

30680125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30680125 is a deficient number, since it is larger than the sum of its proper divisors (13868795).

30680125 is an equidigital number, since it uses as much as digits as its factorization.

30680125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5038 (or 5021 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 30680125 is about 5538.9642533600. The cubic root of 30680125 is about 313.0538445068.

Adding to 30680125 its reverse (52108603), we get a palindrome (82788728).

The spelling of 30680125 in words is "thirty million, six hundred eighty thousand, one hundred twenty-five".