30152656 has 20 divisors (see below), whose sum is σ = 58506052. Its totient is φ = 15054336.

The previous prime is 30152653. The next prime is 30152657. The reversal of 30152656 is 65625103.

It can be written as a sum of positive squares in 2 ways, for example, as 29811600 + 341056 = 5460^2 + 584^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30152653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20026 + ... + 21478.

Almost surely, 2^30152656 is an apocalyptic number.

It is an amenable number.

30152656 is a deficient number, since it is larger than the sum of its proper divisors (28353396).

30152656 is a wasteful number, since it uses less digits than its factorization.

30152656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758 (or 2752 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 30152656 is about 5491.1434146269. The cubic root of 30152656 is about 311.2494010300.

Adding to 30152656 its reverse (65625103), we get a palindrome (95777759).

It can be divided in two parts, 3015 and 2656, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 30152656 in words is "thirty million, one hundred fifty-two thousand, six hundred fifty-six".