55620337 has 4 divisors (see below), whose sum is σ = 55636336. Its totient is φ = 55604340.

The previous prime is 55620329. The next prime is 55620343. The reversal of 55620337 is 73302655.

55620337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 55620337 - 2³ = 55620329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55620299 and 55620308.

It is not an unprimeable number, because it can be changed into a prime (55620307) 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 3 ways as a sum of consecutive naturals, for example, 339 + ... + 10552.

It is an arithmetic number, because the mean of its divisors is an integer number (13909084).

Almost surely, 2^55620337 is an apocalyptic number.

It is an amenable number.

55620337 is a deficient number, since it is larger than the sum of its proper divisors (15999).

55620337 is a wasteful number, since it uses less digits than its factorization.

55620337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15998.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 55620337 is about 7457.9043303062. The cubic root of 55620337 is about 381.7196690586.

The spelling of 55620337 in words is "fifty-five million, six hundred twenty thousand, three hundred thirty-seven".