30525245 has 4 divisors (see below), whose sum is σ = 36630300. Its totient is φ = 24420192.

The previous prime is 30525241. The next prime is 30525247. The reversal of 30525245 is 54252503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11957764 + 18567481 = 3458^2 + 4309^2 .

It is a cyclic number.

It is not a de Polignac number, because 30525245 - 2² = 30525241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30525241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3052520 + ... + 3052529.

It is an arithmetic number, because the mean of its divisors is an integer number (9157575).

Almost surely, 2^30525245 is an apocalyptic number.

It is an amenable number.

30525245 is a deficient number, since it is larger than the sum of its proper divisors (6105055).

30525245 is an equidigital number, since it uses as much as digits as its factorization.

30525245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105054.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 30525245 is about 5524.9656107527. The cubic root of 30525245 is about 312.5261674088.

Adding to 30525245 its reverse (54252503), we get a palindrome (84777748).

The spelling of 30525245 in words is "thirty million, five hundred twenty-five thousand, two hundred forty-five".