30124925 has 12 divisors (see below), whose sum is σ = 37720800. Its totient is φ = 23863920.

The previous prime is 30124921. The next prime is 30124949. The reversal of 30124925 is 52942103.

It is not a de Polignac number, because 30124925 - 2² = 30124921 is a prime.

It is a super-2 number, since 2×30124925² = 1815022212511250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30124894 and 30124903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30124921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3275 + ... + 8424.

It is an arithmetic number, because the mean of its divisors is an integer number (3143400).

Almost surely, 2^30124925 is an apocalyptic number.

It is an amenable number.

30124925 is a deficient number, since it is larger than the sum of its proper divisors (7595875).

30124925 is a wasteful number, since it uses less digits than its factorization.

30124925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11812 (or 11807 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30124925 is about 5488.6177677080. The cubic root of 30124925 is about 311.1539544408.

The spelling of 30124925 in words is "thirty million, one hundred twenty-four thousand, nine hundred twenty-five".