551163543 has 16 divisors (see below), whose sum is σ = 844271616. Its totient is φ = 313299360.

The previous prime is 551163541. The next prime is 551163553. The reversal of 551163543 is 345361155.

It is not a de Polignac number, because 551163543 - 2¹ = 551163541 is a prime.

It is a super-2 number, since 2×551163543² = 607562502264625698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551163541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64696 + ... + 72717.

It is an arithmetic number, because the mean of its divisors is an integer number (52766976).

Almost surely, 2^551163543 is an apocalyptic number.

551163543 is a deficient number, since it is larger than the sum of its proper divisors (293108073).

551163543 is a wasteful number, since it uses less digits than its factorization.

551163543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137614.

The product of its digits is 27000, while the sum is 33.

The square root of 551163543 is about 23476.8725131777. The cubic root of 551163543 is about 819.8986306379.

The spelling of 551163543 in words is "five hundred fifty-one million, one hundred sixty-three thousand, five hundred forty-three".