216525035 has 8 divisors (see below), whose sum is σ = 261062736. Its totient is φ = 172398240.

The previous prime is 216525031. The next prime is 216525061. The reversal of 216525035 is 530525612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216525035 - 2² = 216525031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216524989 and 216525007.

It is not an unprimeable number, because it can be changed into a prime (216525031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101564 + ... + 103673.

It is an arithmetic number, because the mean of its divisors is an integer number (32632842).

Almost surely, 2^216525035 is an apocalyptic number.

216525035 is a deficient number, since it is larger than the sum of its proper divisors (44537701).

216525035 is a wasteful number, since it uses less digits than its factorization.

216525035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205453.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 216525035 is about 14714.7896689011. The cubic root of 216525035 is about 600.4857501570.

It can be divided in two parts, 21 and 6525035, that multiplied together give a triangular number (137025735 = T₁₆₅₅₄).

The spelling of 216525035 in words is "two hundred sixteen million, five hundred twenty-five thousand, thirty-five".