55538105 has 16 divisors (see below), whose sum is σ = 76754304. Its totient is φ = 37789440.

The previous prime is 55538101. The next prime is 55538129. The reversal of 55538105 is 50183555.

It is not a de Polignac number, because 55538105 - 2² = 55538101 is a prime.

It is a super-2 number, since 2×55538105² = 6168962213982050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55538101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1472 + ... + 10641.

It is an arithmetic number, because the mean of its divisors is an integer number (4797144).

Almost surely, 2^55538105 is an apocalyptic number.

It is an amenable number.

55538105 is a deficient number, since it is larger than the sum of its proper divisors (21216199).

55538105 is a wasteful number, since it uses less digits than its factorization.

55538105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12256.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 55538105 is about 7452.3892142051. The cubic root of 55538105 is about 381.5314582017.

The spelling of 55538105 in words is "fifty-five million, five hundred thirty-eight thousand, one hundred five".