550431253 has 16 divisors (see below), whose sum is σ = 590862384. Its totient is φ = 510935040.

The previous prime is 550431163. The next prime is 550431293. The reversal of 550431253 is 352134055.

It can be written as a sum of positive squares in 8 ways, for example, as 30272004 + 520159249 = 5502^2 + 22807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550431253 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 (550431293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891801 + ... + 892417.

It is an arithmetic number, because the mean of its divisors is an integer number (36928899).

Almost surely, 2^550431253 is an apocalyptic number.

It is an amenable number.

550431253 is a deficient number, since it is larger than the sum of its proper divisors (40431131).

550431253 is a wasteful number, since it uses less digits than its factorization.

550431253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 550431253 is about 23461.2713423634. The cubic root of 550431253 is about 819.5353569319.

The spelling of 550431253 in words is "five hundred fifty million, four hundred thirty-one thousand, two hundred fifty-three".