30540025 has 6 divisors (see below), whose sum is σ = 37869662. Its totient is φ = 24432000.

The previous prime is 30540017. The next prime is 30540079. The reversal of 30540025 is 52004503.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 10361961 + 20178064 = 3219^2 + 4492^2 .

It is not a de Polignac number, because 30540025 - 2³ = 30540017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30539984 and 30540011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610776 + ... + 610825.

Almost surely, 2^30540025 is an apocalyptic number.

It is an amenable number.

30540025 is a deficient number, since it is larger than the sum of its proper divisors (7329637).

30540025 is a wasteful number, since it uses less digits than its factorization.

30540025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221611 (or 1221606 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 30540025 is about 5526.3030137697. The cubic root of 30540025 is about 312.5765998890.

Adding to 30540025 its reverse (52004503), we get a palindrome (82544528).

The spelling of 30540025 in words is "thirty million, five hundred forty thousand, twenty-five".