30525305225 has 6 divisors (see below), whose sum is σ = 37851378510. Its totient is φ = 24420244160.

The previous prime is 30525305219. The next prime is 30525305227. The reversal of 30525305225 is 52250352503.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 264615289 + 30260689936 = 16267^2 + 173956^2 .

It is not a de Polignac number, because 30525305225 - 2¹⁴ = 30525288841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30525305191 and 30525305200.

It is not an unprimeable number, because it can be changed into a prime (30525305227) 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, 610506080 + ... + 610506129.

It is an arithmetic number, because the mean of its divisors is an integer number (6308563085).

Almost surely, 2^30525305225 is an apocalyptic number.

It is an amenable number.

30525305225 is a deficient number, since it is larger than the sum of its proper divisors (7326073285).

30525305225 is a wasteful number, since it uses less digits than its factorization.

30525305225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221012219 (or 1221012214 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 32.

Adding to 30525305225 its reverse (52250352503), we get a palindrome (82775657728).

The spelling of 30525305225 in words is "thirty billion, five hundred twenty-five million, three hundred five thousand, two hundred twenty-five".