30533245 has 8 divisors (see below), whose sum is σ = 37240920. Its totient is φ = 24025920.

The previous prime is 30533231. The next prime is 30533249. The reversal of 30533245 is 54233503.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1610361 + 28922884 = 1269^2 + 5378^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30533245 - 2⁷ = 30533117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30533249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49750 + ... + 50359.

It is an arithmetic number, because the mean of its divisors is an integer number (4655115).

Almost surely, 2^30533245 is an apocalyptic number.

It is an amenable number.

30533245 is a deficient number, since it is larger than the sum of its proper divisors (6707675).

30533245 is a wasteful number, since it uses less digits than its factorization.

30533245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100175.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 30533245 is about 5525.6895497304. The cubic root of 30533245 is about 312.5534671182.

Adding to 30533245 its reverse (54233503), we get a palindrome (84766748).

The spelling of 30533245 in words is "thirty million, five hundred thirty-three thousand, two hundred forty-five".