30553247 has 2 divisors, whose sum is σ = 30553248. Its totient is φ = 30553246.

The previous prime is 30553219. The next prime is 30553249. The reversal of 30553247 is 74235503.

It is a strong prime.

It is an emirp because it is prime and its reverse (74235503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30553247 - 2⁶ = 30553183 is a prime.

Together with 30553249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30553249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15276623 + 15276624.

It is an arithmetic number, because the mean of its divisors is an integer number (15276624).

Almost surely, 2^30553247 is an apocalyptic number.

30553247 is a deficient number, since it is larger than the sum of its proper divisors (1).

30553247 is an equidigital number, since it uses as much as digits as its factorization.

30553247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 30553247 is about 5527.4991632745. The cubic root of 30553247 is about 312.6217023572.

The spelling of 30553247 in words is "thirty million, five hundred fifty-three thousand, two hundred forty-seven".