55616650 has 12 divisors (see below), whose sum is σ = 103447062. Its totient is φ = 22246640.

The previous prime is 55616647. The next prime is 55616653. The reversal of 55616650 is 5661655.

It is an interprime number because it is at equal distance from previous prime (55616647) and next prime (55616653).

It can be written as a sum of positive squares in 3 ways, for example, as 50851161 + 4765489 = 7131^2 + 2183^2 .

It is not an unprimeable number, because it can be changed into a prime (55616653) 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, 556117 + ... + 556216.

Almost surely, 2^55616650 is an apocalyptic number.

55616650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55616650 is a deficient number, since it is larger than the sum of its proper divisors (47830412).

55616650 is a wasteful number, since it uses less digits than its factorization.

55616650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112345 (or 1112340 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 55616650 is about 7457.6571388071. The cubic root of 55616650 is about 381.7112343050.

The spelling of 55616650 in words is "fifty-five million, six hundred sixteen thousand, six hundred fifty".