30505152 has 28 divisors (see below), whose sum is σ = 80712056. Its totient is φ = 10168320.

The previous prime is 30505151. The next prime is 30505159. The reversal of 30505152 is 25150503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30505151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79249 + ... + 79632.

Almost surely, 2^30505152 is an apocalyptic number.

30505152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30505152 is an abundant number, since it is smaller than the sum of its proper divisors (50206904).

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

30505152 is a wasteful number, since it uses less digits than its factorization.

30505152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158896 (or 158886 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 30505152 is about 5523.1469290614. The cubic root of 30505152 is about 312.4575797353.

Adding to 30505152 its reverse (25150503), we get a palindrome (55655655).

The spelling of 30505152 in words is "thirty million, five hundred five thousand, one hundred fifty-two".