550857751 has 12 divisors (see below), whose sum is σ = 580318200. Its totient is φ = 522819440.

The previous prime is 550857743. The next prime is 550857773. The reversal of 550857751 is 157758055.

It is a happy number.

It is not a de Polignac number, because 550857751 - 2³ = 550857743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550857698 and 550857707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550857731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65325 + ... + 73273.

It is an arithmetic number, because the mean of its divisors is an integer number (48359850).

Almost surely, 2^550857751 is an apocalyptic number.

550857751 is a deficient number, since it is larger than the sum of its proper divisors (29460449).

550857751 is a wasteful number, since it uses less digits than its factorization.

550857751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8126 (or 8103 counting only the distinct ones).

The product of its (nonzero) digits is 245000, while the sum is 43.

The square root of 550857751 is about 23470.3589874548. The cubic root of 550857751 is about 819.7469727941.

The spelling of 550857751 in words is "five hundred fifty million, eight hundred fifty-seven thousand, seven hundred fifty-one".