30042505 has 8 divisors (see below), whose sum is σ = 36662400. Its totient is φ = 23626416.

The previous prime is 30042499. The next prime is 30042527. The reversal of 30042505 is 50524003.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30042505 - 2⁵ = 30042473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50625 + ... + 51214.

It is an arithmetic number, because the mean of its divisors is an integer number (4582800).

Almost surely, 2^30042505 is an apocalyptic number.

It is an amenable number.

30042505 is a deficient number, since it is larger than the sum of its proper divisors (6619895).

30042505 is a wasteful number, since it uses less digits than its factorization.

30042505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101903.

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

The square root of 30042505 is about 5481.1043595246. The cubic root of 30042505 is about 310.8699290305.

Adding to 30042505 its reverse (50524003), we get a palindrome (80566508).

The spelling of 30042505 in words is "thirty million, forty-two thousand, five hundred five".