30152520 has 64 divisors (see below), whose sum is σ = 100512000. Its totient is φ = 8040384.

The previous prime is 30152513. The next prime is 30152527. The reversal of 30152520 is 2525103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30152513) and next prime (30152527).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30152493 and 30152502.

It is not an unprimeable number, because it can be changed into a prime (30152527) 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 15 ways as a sum of consecutive naturals, for example, 12880 + ... + 15039.

It is an arithmetic number, because the mean of its divisors is an integer number (1570500).

Almost surely, 2^30152520 is an apocalyptic number.

30152520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30152520 is an abundant number, since it is smaller than the sum of its proper divisors (70359480).

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

30152520 is a wasteful number, since it uses less digits than its factorization.

30152520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27939 (or 27929 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 30152520 is about 5491.1310310354. The cubic root of 30152520 is about 311.2489330781.

Adding to 30152520 its reverse (2525103), we get a palindrome (32677623).

The spelling of 30152520 in words is "thirty million, one hundred fifty-two thousand, five hundred twenty".