10216551 has 8 divisors (see below), whose sum is σ = 13990384. Its totient is φ = 6626880.

The previous prime is 10216543. The next prime is 10216561. The reversal of 10216551 is 15561201.

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

It is not a de Polignac number, because 10216551 - 2³ = 10216543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10216561) 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, 45910 + ... + 46131.

It is an arithmetic number, because the mean of its divisors is an integer number (1748798).

Almost surely, 2^10216551 is an apocalyptic number.

10216551 is a deficient number, since it is larger than the sum of its proper divisors (3773833).

10216551 is an equidigital number, since it uses as much as digits as its factorization.

10216551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92081.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 10216551 is about 3196.3339938123. Note that the first 3 decimals coincide. The cubic root of 10216551 is about 216.9875264479.

Adding to 10216551 its reverse (15561201), we get a palindrome (25777752).

It can be divided in two parts, 102 and 16551, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 10216551 in words is "ten million, two hundred sixteen thousand, five hundred fifty-one".