550513131 has 16 divisors (see below), whose sum is σ = 844512000. Its totient is φ = 312465888.

The previous prime is 550513081. The next prime is 550513141. The reversal of 550513131 is 131315055.

It is not a de Polignac number, because 550513131 - 2¹¹ = 550511083 is a prime.

It is a super-2 number, since 2×550513131² = 606129414806846322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550513141) 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 15 ways as a sum of consecutive naturals, for example, 84841 + ... + 91098.

It is an arithmetic number, because the mean of its divisors is an integer number (52782000).

Almost surely, 2^550513131 is an apocalyptic number.

550513131 is a deficient number, since it is larger than the sum of its proper divisors (293998869).

550513131 is a wasteful number, since it uses less digits than its factorization.

550513131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176098.

The product of its (nonzero) digits is 1125, while the sum is 24.

The square root of 550513131 is about 23463.0162383271. The cubic root of 550513131 is about 819.5759908825.

Adding to 550513131 its reverse (131315055), we get a palindrome (681828186).

The spelling of 550513131 in words is "five hundred fifty million, five hundred thirteen thousand, one hundred thirty-one".