30549125 has 8 divisors (see below), whose sum is σ = 38125464. Its totient is φ = 24439200.

The previous prime is 30549121. The next prime is 30549133. The reversal of 30549125 is 52194503.

It can be written as a sum of positive squares in 4 ways, for example, as 452929 + 30096196 = 673^2 + 5486^2 .

It is not a de Polignac number, because 30549125 - 2² = 30549121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30549121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122072 + ... + 122321.

It is an arithmetic number, because the mean of its divisors is an integer number (4765683).

Almost surely, 2^30549125 is an apocalyptic number.

It is an amenable number.

30549125 is a deficient number, since it is larger than the sum of its proper divisors (7576339).

30549125 is an equidigital number, since it uses as much as digits as its factorization.

30549125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244408 (or 244398 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 30549125 is about 5527.1262876833. The cubic root of 30549125 is about 312.6076429174.

The spelling of 30549125 in words is "thirty million, five hundred forty-nine thousand, one hundred twenty-five".