550550061 has 32 divisors (see below), whose sum is σ = 874800000. Its totient is φ = 341138304.

The previous prime is 550550041. The next prime is 550550081. The reversal of 550550061 is 160055055.

550550061 is a `hidden beast` number, since 5 + 50 + 550 + 0 + 61 = 666.

It is an interprime number because it is at equal distance from previous prime (550550041) and next prime (550550081).

It is not a de Polignac number, because 550550061 - 2⁵ = 550550029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550550041) 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 31 ways as a sum of consecutive naturals, for example, 17065 + ... + 37313.

It is an arithmetic number, because the mean of its divisors is an integer number (27337500).

Almost surely, 2^550550061 is an apocalyptic number.

It is an amenable number.

550550061 is a deficient number, since it is larger than the sum of its proper divisors (324249939).

550550061 is a wasteful number, since it uses less digits than its factorization.

550550061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20330 (or 20324 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 550550061 is about 23463.8032083463. The cubic root of 550550061 is about 819.5943169756.

The spelling of 550550061 in words is "five hundred fifty million, five hundred fifty thousand, sixty-one".