30538090553 has 4 divisors (see below), whose sum is σ = 30548526720. Its totient is φ = 30527654388.

The previous prime is 30538090547. The next prime is 30538090577. The reversal of 30538090553 is 35509083503.

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.

It is a cyclic number.

It is not a de Polignac number, because 30538090553 - 2²⁴ = 30521313337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30538090553.

It is not an unprimeable number, because it can be changed into a prime (30538090523) 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, 5213693 + ... + 5219546.

It is an arithmetic number, because the mean of its divisors is an integer number (7637131680).

Almost surely, 2^30538090553 is an apocalyptic number.

It is an amenable number.

30538090553 is a deficient number, since it is larger than the sum of its proper divisors (10436167).

30538090553 is a wasteful number, since it uses less digits than its factorization.

30538090553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10436166.

The product of its (nonzero) digits is 243000, while the sum is 41.

The spelling of 30538090553 in words is "thirty billion, five hundred thirty-eight million, ninety thousand, five hundred fifty-three".