30542140025 has 12 divisors (see below), whose sum is σ = 38207409852. Its totient is φ = 24217482240.

The previous prime is 30542140021. The next prime is 30542140033. The reversal of 30542140025 is 52004124503.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 678498304 + 29863641721 = 26048^2 + 172811^2 .

It is not a de Polignac number, because 30542140025 - 2² = 30542140021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30542139976 and 30542140003.

It is not an unprimeable number, because it can be changed into a prime (30542140021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5402864 + ... + 5408513.

It is an arithmetic number, because the mean of its divisors is an integer number (3183950821).

Almost surely, 2^30542140025 is an apocalyptic number.

It is an amenable number.

30542140025 is a deficient number, since it is larger than the sum of its proper divisors (7665269827).

30542140025 is a wasteful number, since it uses less digits than its factorization.

30542140025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10811500 (or 10811495 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 30542140025 its reverse (52004124503), we get a palindrome (82546264528).

The spelling of 30542140025 in words is "thirty billion, five hundred forty-two million, one hundred forty thousand, twenty-five".