30117025 has 6 divisors (see below), whose sum is σ = 37345142. Its totient is φ = 24093600.

The previous prime is 30117023. The next prime is 30117029. The reversal of 30117025 is 52071103.

It can be written as a sum of positive squares in 3 ways, for example, as 7800849 + 22316176 = 2793^2 + 4724^2 .

It is not a de Polignac number, because 30117025 - 2¹ = 30117023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30116993 and 30117011.

It is not an unprimeable number, because it can be changed into a prime (30117023) 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, 602316 + ... + 602365.

Almost surely, 2^30117025 is an apocalyptic number.

It is an amenable number.

30117025 is a deficient number, since it is larger than the sum of its proper divisors (7228117).

30117025 is a wasteful number, since it uses less digits than its factorization.

30117025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204691 (or 1204686 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 30117025 is about 5487.8980493446. The cubic root of 30117025 is about 311.1267529220.

Adding to 30117025 its reverse (52071103), we get a palindrome (82188128).

The spelling of 30117025 in words is "thirty million, one hundred seventeen thousand, twenty-five".