550512157 has 8 divisors (see below), whose sum is σ = 598107384. Its totient is φ = 503666688.

The previous prime is 550512121. The next prime is 550512161. The reversal of 550512157 is 751215055.

It can be written as a sum of positive squares in 4 ways, for example, as 93636 + 550418521 = 306^2 + 23461^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 550512157 - 2⁷ = 550512029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550512257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185908 + ... + 188845.

It is an arithmetic number, because the mean of its divisors is an integer number (74763423).

Almost surely, 2^550512157 is an apocalyptic number.

It is an amenable number.

550512157 is a deficient number, since it is larger than the sum of its proper divisors (47595227).

550512157 is a wasteful number, since it uses less digits than its factorization.

550512157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374879.

The product of its (nonzero) digits is 8750, while the sum is 31.

The square root of 550512157 is about 23462.9954822482. The cubic root of 550512157 is about 819.5755075350.

The spelling of 550512157 in words is "five hundred fifty million, five hundred twelve thousand, one hundred fifty-seven".