55605629 has 4 divisors (see below), whose sum is σ = 55620576. Its totient is φ = 55590684.

The previous prime is 55605611. The next prime is 55605631. The reversal of 55605629 is 92650655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92650655 = 5 ⋅18530131.

It is a cyclic number.

It is not a de Polignac number, because 55605629 - 2⁸ = 55605373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55605592 and 55605601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55605659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002 + ... + 10964.

It is an arithmetic number, because the mean of its divisors is an integer number (13905144).

Almost surely, 2^55605629 is an apocalyptic number.

It is an amenable number.

55605629 is a deficient number, since it is larger than the sum of its proper divisors (14947).

55605629 is an equidigital number, since it uses as much as digits as its factorization.

55605629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14946.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 55605629 is about 7456.9181972179. The cubic root of 55605629 is about 381.6860193293.

The spelling of 55605629 in words is "fifty-five million, six hundred five thousand, six hundred twenty-nine".