30455125 has 16 divisors (see below), whose sum is σ = 38733552. Its totient is φ = 23899200.

The previous prime is 30455123. The next prime is 30455147. The reversal of 30455125 is 52155403.

It can be written as a sum of positive squares in 8 ways, for example, as 14085009 + 16370116 = 3753^2 + 4046^2 .

It is not a de Polignac number, because 30455125 - 2¹ = 30455123 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30455125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30455123) 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 15 ways as a sum of consecutive naturals, for example, 4327 + ... + 8923.

It is an arithmetic number, because the mean of its divisors is an integer number (2420847).

Almost surely, 2^30455125 is an apocalyptic number.

It is an amenable number.

30455125 is a deficient number, since it is larger than the sum of its proper divisors (8278427).

30455125 is an equidigital number, since it uses as much as digits as its factorization.

30455125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 30455125 is about 5518.6162214816. The cubic root of 30455125 is about 312.2866810839.

The spelling of 30455125 in words is "thirty million, four hundred fifty-five thousand, one hundred twenty-five".