553216551 has 8 divisors (see below), whose sum is σ = 741444720. Its totient is φ = 366899712.

The previous prime is 553216541. The next prime is 553216561. The reversal of 553216551 is 155612355.

553216551 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 (553216541) and next prime (553216561).

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

It is not a de Polignac number, because 553216551 - 2⁹ = 553216039 is a prime.

It is a super-3 number, since 3×553216551³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553216541) 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, 477156 + ... + 478313.

It is an arithmetic number, because the mean of its divisors is an integer number (92680590).

Almost surely, 2^553216551 is an apocalyptic number.

553216551 is a deficient number, since it is larger than the sum of its proper divisors (188228169).

553216551 is a wasteful number, since it uses less digits than its factorization.

553216551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955665.

The product of its digits is 22500, while the sum is 33.

The square root of 553216551 is about 23520.5559245525. Note that the first 3 decimals coincide. The cubic root of 553216551 is about 820.9153722899.

The spelling of 553216551 in words is "five hundred fifty-three million, two hundred sixteen thousand, five hundred fifty-one".