30503055025 has 6 divisors (see below), whose sum is σ = 37823788262. Its totient is φ = 24402444000.

The previous prime is 30503054983. The next prime is 30503055029. The reversal of 30503055025 is 52055030503.

It can be written as a sum of positive squares in 3 ways, for example, as 3021041296 + 27482013729 = 54964^2 + 165777^2 .

It is not a de Polignac number, because 30503055025 - 2²⁷ = 30368837297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30503054984 and 30503055002.

It is not an unprimeable number, because it can be changed into a prime (30503055029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610061076 + ... + 610061125.

Almost surely, 2^30503055025 is an apocalyptic number.

It is an amenable number.

30503055025 is a deficient number, since it is larger than the sum of its proper divisors (7320733237).

30503055025 is a wasteful number, since it uses less digits than its factorization.

30503055025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220122211 (or 1220122206 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 28.

Adding to 30503055025 its reverse (52055030503), we get a palindrome (82558085528).

The spelling of 30503055025 in words is "thirty billion, five hundred three million, fifty-five thousand, twenty-five".