55620371 has 8 divisors (see below), whose sum is σ = 59389440. Its totient is φ = 51963912.

The previous prime is 55620343. The next prime is 55620377. The reversal of 55620371 is 17302655.

55620371 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55620371 - 2⁶ = 55620307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55620377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27131 + ... + 29108.

It is an arithmetic number, because the mean of its divisors is an integer number (7423680).

Almost surely, 2^55620371 is an apocalyptic number.

55620371 is a deficient number, since it is larger than the sum of its proper divisors (3769069).

55620371 is a wasteful number, since it uses less digits than its factorization.

55620371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56305.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 55620371 is about 7457.9066097666. The cubic root of 55620371 is about 381.7197468387.

The spelling of 55620371 in words is "fifty-five million, six hundred twenty thousand, three hundred seventy-one".