30348025 has 6 divisors (see below), whose sum is σ = 37631582. Its totient is φ = 24278400.

The previous prime is 30348013. The next prime is 30348053. The reversal of 30348025 is 52084303.

It can be written as a sum of positive squares in 3 ways, for example, as 2585664 + 27762361 = 1608^2 + 5269^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30348025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1213921 = 30348025 / (3 + 0 + 3 + 4 + 8 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606936 + ... + 606985.

Almost surely, 2^30348025 is an apocalyptic number.

It is an amenable number.

30348025 is a deficient number, since it is larger than the sum of its proper divisors (7283557).

30348025 is a wasteful number, since it uses less digits than its factorization.

30348025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213931 (or 1213926 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 30348025 is about 5508.9041560005. The cubic root of 30348025 is about 311.9201835332.

The spelling of 30348025 in words is "thirty million, three hundred forty-eight thousand, twenty-five".