55506650 has 12 divisors (see below), whose sum is σ = 103242462. Its totient is φ = 22202640.

The previous prime is 55506643. The next prime is 55506653. The reversal of 55506650 is 5660555.

It can be written as a sum of positive squares in 3 ways, for example, as 51998521 + 3508129 = 7211^2 + 1873^2 .

It is not an unprimeable number, because it can be changed into a prime (55506653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555017 + ... + 555116.

Almost surely, 2^55506650 is an apocalyptic number.

55506650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55506650 is a deficient number, since it is larger than the sum of its proper divisors (47735812).

55506650 is a wasteful number, since it uses less digits than its factorization.

55506650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110145 (or 1110140 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 55506650 is about 7450.2785182837. The cubic root of 55506650 is about 381.4594155419.

The spelling of 55506650 in words is "fifty-five million, five hundred six thousand, six hundred fifty".