30055000253 has 4 divisors (see below), whose sum is σ = 30055347168. Its totient is φ = 30054653340.

The previous prime is 30055000237. The next prime is 30055000279. The reversal of 30055000253 is 35200055003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30055000253 - 2⁴ = 30055000237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055000153) 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, 78200 + ... + 257342.

It is an arithmetic number, because the mean of its divisors is an integer number (7513836792).

Almost surely, 2^30055000253 is an apocalyptic number.

It is an amenable number.

30055000253 is a deficient number, since it is larger than the sum of its proper divisors (346915).

30055000253 is a wasteful number, since it uses less digits than its factorization.

30055000253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346914.

The product of its (nonzero) digits is 2250, while the sum is 23.

Adding to 30055000253 its reverse (35200055003), we get a palindrome (65255055256).

The spelling of 30055000253 in words is "thirty billion, fifty-five million, two hundred fifty-three", and thus it is an aban number.