30555050500253 has 4 divisors (see below), whose sum is σ = 30568709443260. Its totient is φ = 30541391557248.

The previous prime is 30555050500171. The next prime is 30555050500283. The reversal of 30555050500253 is 35200505055503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9136092624409 + 21418957875844 = 3022597^2 + 4628062^2 .

It is a cyclic number.

It is not a de Polignac number, because 30555050500253 - 2³⁶ = 30486331023517 is a prime.

It is a super-2 number, since 2×30555050500253² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30555050500283) 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, 6829468148 + ... + 6829472621.

It is an arithmetic number, because the mean of its divisors is an integer number (7642177360815).

Almost surely, 2^{30555050500253} is an apocalyptic number.

It is an amenable number.

30555050500253 is a deficient number, since it is larger than the sum of its proper divisors (13658943007).

30555050500253 is a wasteful number, since it uses less digits than its factorization.

30555050500253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13658943006.

The product of its (nonzero) digits is 281250, while the sum is 38.

Adding to 30555050500253 its reverse (35200505055503), we get a palindrome (65755555555756).

The spelling of 30555050500253 in words is "thirty trillion, five hundred fifty-five billion, fifty million, five hundred thousand, two hundred fifty-three".