30872425 has 18 divisors (see below), whose sum is σ = 40675658. Its totient is φ = 23239680.

The previous prime is 30872419. The next prime is 30872437. The reversal of 30872425 is 52427803.

It can be written as a sum of positive squares in 9 ways, for example, as 3790809 + 27081616 = 1947^2 + 5204^2 .

It is not a de Polignac number, because 30872425 - 2⁹ = 30871913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5089 + ... + 9361.

Almost surely, 2^30872425 is an apocalyptic number.

It is an amenable number.

30872425 is a deficient number, since it is larger than the sum of its proper divisors (9803233).

30872425 is a wasteful number, since it uses less digits than its factorization.

30872425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317 (or 4295 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 30872425 is about 5556.2959784374. The cubic root of 30872425 is about 313.7065462590.

The spelling of 30872425 in words is "thirty million, eight hundred seventy-two thousand, four hundred twenty-five".