30527985 has 16 divisors (see below), whose sum is σ = 50037120. Its totient is φ = 15884160.

The previous prime is 30527983. The next prime is 30527989. The reversal of 30527985 is 58972503.

It is not a de Polignac number, because 30527985 - 2¹ = 30527983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30527983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24205 + ... + 25434.

It is an arithmetic number, because the mean of its divisors is an integer number (3127320).

Almost surely, 2^30527985 is an apocalyptic number.

It is an amenable number.

30527985 is a deficient number, since it is larger than the sum of its proper divisors (19509135).

30527985 is a wasteful number, since it uses less digits than its factorization.

30527985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49688.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 30527985 is about 5525.2135705328. The cubic root of 30527985 is about 312.5355180963.

The spelling of 30527985 in words is "thirty million, five hundred twenty-seven thousand, nine hundred eighty-five".