550542757 has 4 divisors (see below), whose sum is σ = 569527020. Its totient is φ = 531558496.

The previous prime is 550542719. The next prime is 550542761. The reversal of 550542757 is 757245055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 472149441 + 78393316 = 21729^2 + 8854^2 .

It is a cyclic number.

It is not a de Polignac number, because 550542757 - 2¹¹ = 550540709 is a prime.

It is a super-2 number, since 2×550542757² = 606194654570322098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550542767) 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 3 ways as a sum of consecutive naturals, for example, 9492088 + ... + 9492145.

It is an arithmetic number, because the mean of its divisors is an integer number (142381755).

Almost surely, 2^550542757 is an apocalyptic number.

It is an amenable number.

550542757 is a deficient number, since it is larger than the sum of its proper divisors (18984263).

550542757 is a wasteful number, since it uses less digits than its factorization.

550542757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18984262.

The product of its (nonzero) digits is 245000, while the sum is 40.

The square root of 550542757 is about 23463.6475638380. The cubic root of 550542757 is about 819.5906925135.

The spelling of 550542757 in words is "five hundred fifty million, five hundred forty-two thousand, seven hundred fifty-seven".