55521849 has 8 divisors (see below), whose sum is σ = 74861280. Its totient is φ = 36598496.

The previous prime is 55521811. The next prime is 55521859. The reversal of 55521849 is 94812555.

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 55521849 - 2¹³ = 55513657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55521859) 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, 103707 + ... + 104240.

It is an arithmetic number, because the mean of its divisors is an integer number (9357660).

Almost surely, 2^55521849 is an apocalyptic number.

It is an amenable number.

55521849 is a deficient number, since it is larger than the sum of its proper divisors (19339431).

55521849 is a wasteful number, since it uses less digits than its factorization.

55521849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208039.

The product of its digits is 72000, while the sum is 39.

The square root of 55521849 is about 7451.2984774467. The cubic root of 55521849 is about 381.4942298242.

The spelling of 55521849 in words is "fifty-five million, five hundred twenty-one thousand, eight hundred forty-nine".