30001725 has 72 divisors (see below), whose sum is σ = 59906880. Its totient is φ = 14713920.

The previous prime is 30001693. The next prime is 30001733. The reversal of 30001725 is 52710003.

30001725 = 113² + 114² + ... + 450².

It is not a de Polignac number, because 30001725 - 2⁵ = 30001693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30001698 and 30001707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 113944 + ... + 114206.

It is an arithmetic number, because the mean of its divisors is an integer number (832040).

Almost surely, 2^30001725 is an apocalyptic number.

It is an amenable number.

30001725 is a deficient number, since it is larger than the sum of its proper divisors (29905155).

30001725 is a wasteful number, since it uses less digits than its factorization.

30001725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 30001725 is about 5477.3830430234. The cubic root of 30001725 is about 310.7292060102.

Adding to 30001725 its reverse (52710003), we get a palindrome (82711728).

The spelling of 30001725 in words is "thirty million, one thousand, seven hundred twenty-five".