30206925 has 60 divisors (see below), whose sum is σ = 63977056. Its totient is φ = 13802400.

The previous prime is 30206923. The next prime is 30206933. The reversal of 30206925 is 52960203.

It is not a de Polignac number, because 30206925 - 2¹ = 30206923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30206921) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 13110 + ... + 15240.

Almost surely, 2^30206925 is an apocalyptic number.

30206925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30206925 is an abundant number, since it is smaller than the sum of its proper divisors (33770131).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30206925 is a wasteful number, since it uses less digits than its factorization.

30206925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 30206925 is about 5496.0826958844. The cubic root of 30206925 is about 311.4360188659.

The spelling of 30206925 in words is "thirty million, two hundred six thousand, nine hundred twenty-five".