216547652 has 12 divisors (see below), whose sum is σ = 379068396. Its totient is φ = 108242400.

The previous prime is 216547631. The next prime is 216547673. The reversal of 216547652 is 256745612.

216547652 is digitally balanced in base 3, 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 (216547631) and next prime (216547673).

It can be written as a sum of positive squares in 2 ways, for example, as 106213636 + 110334016 = 10306^2 + 10504^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15098 + ... + 25710.

It is an arithmetic number, because the mean of its divisors is an integer number (31589033).

Almost surely, 2^216547652 is an apocalyptic number.

It is an amenable number.

216547652 is a deficient number, since it is larger than the sum of its proper divisors (162520744).

216547652 is a wasteful number, since it uses less digits than its factorization.

216547652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15718 (or 15716 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 216547652 is about 14715.5581613475. The cubic root of 216547652 is about 600.5066572288.

The spelling of 216547652 in words is "two hundred sixteen million, five hundred forty-seven thousand, six hundred fifty-two".