30057825 has 36 divisors (see below), whose sum is σ = 57816240. Its totient is φ = 13739040.

The previous prime is 30057799. The next prime is 30057827. The reversal of 30057825 is 52875003.

It is a happy number.

It is not a de Polignac number, because 30057825 - 2⁵ = 30057793 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30057792 and 30057801.

It is not an unprimeable number, because it can be changed into a prime (30057827) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 415 + ... + 7764.

Almost surely, 2^30057825 is an apocalyptic number.

30057825 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30057825 is a deficient number, since it is larger than the sum of its proper divisors (27758415).

30057825 is a wasteful number, since it uses less digits than its factorization.

30057825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8206 (or 8194 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 30057825 is about 5482.5017099861. The cubic root of 30057825 is about 310.9227621526.

The spelling of 30057825 in words is "thirty million, fifty-seven thousand, eight hundred twenty-five".