30553145 has 8 divisors (see below), whose sum is σ = 41901504. Its totient is φ = 20950704.

The previous prime is 30553141. The next prime is 30553147. The reversal of 30553145 is 54135503.

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

It is a cyclic number.

It is not a de Polignac number, because 30553145 - 2² = 30553141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30553141) 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, 436439 + ... + 436508.

It is an arithmetic number, because the mean of its divisors is an integer number (5237688).

Almost surely, 2^30553145 is an apocalyptic number.

30553145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30553145 is a deficient number, since it is larger than the sum of its proper divisors (11348359).

30553145 is an equidigital number, since it uses as much as digits as its factorization.

30553145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872959.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 30553145 is about 5527.4899366711. The cubic root of 30553145 is about 312.6213544678.

Adding to 30553145 its reverse (54135503), we get a palindrome (84688648).

The spelling of 30553145 in words is "thirty million, five hundred fifty-three thousand, one hundred forty-five".