30766625 has 8 divisors (see below), whose sum is σ = 38396904. Its totient is φ = 24613200.

The previous prime is 30766621. The next prime is 30766627. The reversal of 30766625 is 52666703.

It can be written as a sum of positive squares in 4 ways, for example, as 2845969 + 27920656 = 1687^2 + 5284^2 .

It is not a de Polignac number, because 30766625 - 2² = 30766621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30766621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122942 + ... + 123191.

It is an arithmetic number, because the mean of its divisors is an integer number (4799613).

Almost surely, 2^30766625 is an apocalyptic number.

It is an amenable number.

30766625 is a deficient number, since it is larger than the sum of its proper divisors (7630279).

30766625 is an equidigital number, since it uses as much as digits as its factorization.

30766625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246148 (or 246138 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 30766625 is about 5546.7670764149. The cubic root of 30766625 is about 313.3477779921.

The spelling of 30766625 in words is "thirty million, seven hundred sixty-six thousand, six hundred twenty-five".