550161137 has 2 divisors, whose sum is σ = 550161138.
Its totient is φ = 550161136.
The previous prime is 550161133. The next prime is 550161149. The reversal of 550161137 is 731161055.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 312723856 + 237437281 = 17684^2 + 15409^2
It is a cyclic number.
It is not a de Polignac number, because 550161137 - 22 = 550161133 is a prime.
It is not a weakly prime, because it can be changed into another prime (550161133) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275080568 + 275080569.
It is an arithmetic number, because the mean of its divisors is an integer number (275080569).
Almost surely, 2550161137 is an apocalyptic number.
It is an amenable number.
550161137 is a deficient number, since it is larger than the sum of its proper divisors (1).
550161137 is an equidigital number, since it uses as much as digits as its factorization.
550161137 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3150, while the sum is 29.
The square root of 550161137 is about 23455.5139999106.
The cubic root of 550161137 is about 819.4012767100.
The spelling of 550161137 in words is "five hundred fifty million, one hundred sixty-one thousand, one hundred thirty-seven".