30042550 has 24 divisors (see below), whose sum is σ = 57808800. Its totient is φ = 11602080.

The previous prime is 30042547. The next prime is 30042583. The reversal of 30042550 is 5524003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8910 + ... + 11809.

It is an arithmetic number, because the mean of its divisors is an integer number (2408700).

Almost surely, 2^30042550 is an apocalyptic number.

30042550 is a deficient number, since it is larger than the sum of its proper divisors (27766250).

30042550 is a wasteful number, since it uses less digits than its factorization.

30042550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20760 (or 20755 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 30042550 is about 5481.1084645353. The cubic root of 30042550 is about 310.8700842455.

Adding to 30042550 its reverse (5524003), we get a palindrome (35566553).

The spelling of 30042550 in words is "thirty million, forty-two thousand, five hundred fifty".