55820541 has 32 divisors (see below), whose sum is σ = 86980608. Its totient is φ = 31187520.

The previous prime is 55820539. The next prime is 55820561. The reversal of 55820541 is 14502855.

It is not a de Polignac number, because 55820541 - 2¹ = 55820539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55820499 and 55820508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55820521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283255 + ... + 283451.

It is an arithmetic number, because the mean of its divisors is an integer number (2718144).

Almost surely, 2^55820541 is an apocalyptic number.

It is an amenable number.

55820541 is a deficient number, since it is larger than the sum of its proper divisors (31160067).

55820541 is a wasteful number, since it uses less digits than its factorization.

55820541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 55820541 is about 7471.3145429703. The cubic root of 55820541 is about 382.1771174122.

The spelling of 55820541 in words is "fifty-five million, eight hundred twenty thousand, five hundred forty-one".