550152261 has 12 divisors (see below), whose sum is σ = 794926860. Its totient is φ = 366647040.

The previous prime is 550152241. The next prime is 550152263. The reversal of 550152261 is 162251055.

550152261 is a `hidden beast` number, since 550 + 1 + 52 + 2 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 182088036 + 368064225 = 13494^2 + 19185^2 .

It is not a de Polignac number, because 550152261 - 2¹⁹ = 549627973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550152263) 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 11 ways as a sum of consecutive naturals, for example, 25141 + ... + 41621.

It is an arithmetic number, because the mean of its divisors is an integer number (66243905).

Almost surely, 2^550152261 is an apocalyptic number.

It is an amenable number.

550152261 is a deficient number, since it is larger than the sum of its proper divisors (244774599).

550152261 is a wasteful number, since it uses less digits than its factorization.

550152261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20196 (or 20193 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 550152261 is about 23455.3247899064. The cubic root of 550152261 is about 819.3968700951.

The spelling of 550152261 in words is "five hundred fifty million, one hundred fifty-two thousand, two hundred sixty-one".