550157 has 4 divisors (see below), whose sum is σ = 567936. Its totient is φ = 532380.

The previous prime is 550139. The next prime is 550163. The reversal of 550157 is 751055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 751055 = 5 ⋅150211.

It is a cyclic number.

It is not a de Polignac number, because 550157 - 2¹⁶ = 484621 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 (550117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8843 + ... + 8904.

It is an arithmetic number, because the mean of its divisors is an integer number (141984).

2⁵⁵⁰¹⁵⁷ is an apocalyptic number.

It is an amenable number.

550157 is a deficient number, since it is larger than the sum of its proper divisors (17779).

550157 is a wasteful number, since it uses less digits than its factorization.

550157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778.

The product of its (nonzero) digits is 875, while the sum is 23.

The square root of 550157 is about 741.7256905353. The cubic root of 550157 is about 81.9399222844.

It can be divided in two parts, 550 and 157, that added together give a palindrome (707).

The spelling of 550157 in words is "five hundred fifty thousand, one hundred fifty-seven".