30525331225 has 27 divisors (see below), whose sum is σ = 38404167069. Its totient is φ = 24068738400.

The previous prime is 30525331211. The next prime is 30525331231. The reversal of 30525331225 is 52213352503.

The square root of 30525331225 is 174715.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 17481863961 + 13043467264 = 132219^2 + 114208^2 .

It is not a de Polignac number, because 30525331225 - 2⁷ = 30525331097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 72506515 + ... + 72506935.

Almost surely, 2^30525331225 is an apocalyptic number.

30525331225 is the 174715-th square number.

30525331225 is the 87358-th centered octagonal number.

It is an amenable number.

30525331225 is a deficient number, since it is larger than the sum of its proper divisors (7878835844).

30525331225 is an frugal number, since it uses more digits than its factorization.

30525331225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 30525331225 its reverse (52213352503), we get a palindrome (82738683728).

The spelling of 30525331225 in words is "thirty billion, five hundred twenty-five million, three hundred thirty-one thousand, two hundred twenty-five".