30748513253 has 2 divisors, whose sum is σ = 30748513254. Its totient is φ = 30748513252.

The previous prime is 30748513199. The next prime is 30748513267. The reversal of 30748513253 is 35231584703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17874887809 + 12873625444 = 133697^2 + 113462^2 .

It is a cyclic number.

It is not a de Polignac number, because 30748513253 - 2⁸ = 30748512997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30748513253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30748519253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15374256626 + 15374256627.

It is an arithmetic number, because the mean of its divisors is an integer number (15374256627).

Almost surely, 2^30748513253 is an apocalyptic number.

It is an amenable number.

30748513253 is a deficient number, since it is larger than the sum of its proper divisors (1).

30748513253 is an equidigital number, since it uses as much as digits as its factorization.

30748513253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 30748513253 in words is "thirty billion, seven hundred forty-eight million, five hundred thirteen thousand, two hundred fifty-three".