30509052 has 48 divisors (see below), whose sum is σ = 81725952. Its totient is φ = 8677440.

The previous prime is 30509051. The next prime is 30509093. The reversal of 30509052 is 25090503.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30509051) 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, 21402 + ... + 22782.

It is an arithmetic number, because the mean of its divisors is an integer number (1702624).

Almost surely, 2^30509052 is an apocalyptic number.

It is a pronic number, being equal to 5523×5524.

It is an amenable number.

30509052 is an abundant number, since it is smaller than the sum of its proper divisors (51216900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30509052 is a wasteful number, since it uses less digits than its factorization.

30509052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 30509052 is about 5523.4999773694. The cubic root of 30509052 is about 312.4708947827.

Adding to 30509052 its reverse (25090503), we get a palindrome (55599555).

The spelling of 30509052 in words is "thirty million, five hundred nine thousand, fifty-two".