55541387 has 4 divisors (see below), whose sum is σ = 60590616. Its totient is φ = 50492160.

The previous prime is 55541333. The next prime is 55541401. The reversal of 55541387 is 78314555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55541387 - 2⁶ = 55541323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55541387.

It is not an unprimeable number, because it can be changed into a prime (55501387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524598 + ... + 2524619.

It is an arithmetic number, because the mean of its divisors is an integer number (15147654).

Almost surely, 2^55541387 is an apocalyptic number.

55541387 is a deficient number, since it is larger than the sum of its proper divisors (5049229).

55541387 is a wasteful number, since it uses less digits than its factorization.

55541387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049228.

The product of its digits is 84000, while the sum is 38.

The square root of 55541387 is about 7452.6094087910. The cubic root of 55541387 is about 381.5389735318.

The spelling of 55541387 in words is "fifty-five million, five hundred forty-one thousand, three hundred eighty-seven".