551097976 has 128 divisors (see below), whose sum is σ = 1317254400. Its totient is φ = 212244480.

The previous prime is 551097971. The next prime is 551097977. The reversal of 551097976 is 679790155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551097971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 835935 + ... + 836593.

It is an arithmetic number, because the mean of its divisors is an integer number (10291050).

Almost surely, 2^551097976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551097976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658627200).

551097976 is an abundant number, since it is smaller than the sum of its proper divisors (766156424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551097976 is a wasteful number, since it uses less digits than its factorization.

551097976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 595350, while the sum is 49.

The square root of 551097976 is about 23475.4760548109. The cubic root of 551097976 is about 819.8661173448.

The spelling of 551097976 in words is "five hundred fifty-one million, ninety-seven thousand, nine hundred seventy-six".