216073552 has 10 divisors (see below), whose sum is σ = 418642538. Its totient is φ = 108036768.

The previous prime is 216073541. The next prime is 216073591. The reversal of 216073552 is 255370612.

It can be written as a sum of positive squares in only one way, i.e., 213627456 + 2446096 = 14616^2 + 1564^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752283 + ... + 6752314.

Almost surely, 2^216073552 is an apocalyptic number.

It is an amenable number.

216073552 is a deficient number, since it is larger than the sum of its proper divisors (202568986).

216073552 is a wasteful number, since it uses less digits than its factorization.

216073552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13504605 (or 13504599 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 216073552 is about 14699.4405335713. The cubic root of 216073552 is about 600.0680959750.

The spelling of 216073552 in words is "two hundred sixteen million, seventy-three thousand, five hundred fifty-two".