55891849 has 6 divisors (see below), whose sum is σ = 60522126. Its totient is φ = 51592320.

The previous prime is 55891841. The next prime is 55891861. The reversal of 55891849 is 94819855.

It can be written as a sum of positive squares in 3 ways, for example, as 5382400 + 50509449 = 2320^2 + 7107^2 .

It is not a de Polignac number, because 55891849 - 2³ = 55891841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55891841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 165192 + ... + 165529.

It is an arithmetic number, because the mean of its divisors is an integer number (10087021).

Almost surely, 2^55891849 is an apocalyptic number.

It is an amenable number.

55891849 is a deficient number, since it is larger than the sum of its proper divisors (4630277).

55891849 is a wasteful number, since it uses less digits than its factorization.

55891849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330747 (or 330734 counting only the distinct ones).

The product of its digits is 518400, while the sum is 49.

The square root of 55891849 is about 7476.0851386270. The cubic root of 55891849 is about 382.3397856650.

The spelling of 55891849 in words is "fifty-five million, eight hundred ninety-one thousand, eight hundred forty-nine".