30683725 has 48 divisors (see below), whose sum is σ = 43604352. Its totient is φ = 21288960.

The previous prime is 30683701. The next prime is 30683749. The reversal of 30683725 is 52738603.

It is an interprime number because it is at equal distance from previous prime (30683701) and next prime (30683749).

It is not a de Polignac number, because 30683725 - 2¹⁵ = 30650957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 420289 + ... + 420361.

It is an arithmetic number, because the mean of its divisors is an integer number (908424).

Almost surely, 2^30683725 is an apocalyptic number.

It is an amenable number.

30683725 is a deficient number, since it is larger than the sum of its proper divisors (12920627).

30683725 is a wasteful number, since it uses less digits than its factorization.

30683725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 30683725 is about 5539.2892143307. The cubic root of 30683725 is about 313.0660885873.

The spelling of 30683725 in words is "thirty million, six hundred eighty-three thousand, seven hundred twenty-five".