216232504 has 8 divisors (see below), whose sum is σ = 405435960. Its totient is φ = 108116248.

The previous prime is 216232501. The next prime is 216232507. The reversal of 216232504 is 405232612.

216232504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216232501) and next prime (216232507).

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×216232504² = 93512991572220032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216232501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13514524 + ... + 13514539.

It is an arithmetic number, because the mean of its divisors is an integer number (50679495).

Almost surely, 2^216232504 is an apocalyptic number.

It is an amenable number.

216232504 is a deficient number, since it is larger than the sum of its proper divisors (189203456).

216232504 is a wasteful number, since it uses less digits than its factorization.

216232504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27029069 (or 27029065 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 216232504 is about 14704.8462759731. The cubic root of 216232504 is about 600.2152042841.

The spelling of 216232504 in words is "two hundred sixteen million, two hundred thirty-two thousand, five hundred four".