55311650 has 12 divisors (see below), whose sum is σ = 102879762. Its totient is φ = 22124640.

The previous prime is 55311629. The next prime is 55311653. The reversal of 55311650 is 5611355.

It can be written as a sum of positive squares in 3 ways, for example, as 49294441 + 6017209 = 7021^2 + 2453^2 .

It is not an unprimeable number, because it can be changed into a prime (55311653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553067 + ... + 553166.

Almost surely, 2^55311650 is an apocalyptic number.

55311650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55311650 is a deficient number, since it is larger than the sum of its proper divisors (47568112).

55311650 is a wasteful number, since it uses less digits than its factorization.

55311650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106245 (or 1106240 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 55311650 is about 7437.1802452274. The cubic root of 55311650 is about 381.0121906714.

The spelling of 55311650 in words is "fifty-five million, three hundred eleven thousand, six hundred fifty".