55917849 has 16 divisors (see below), whose sum is σ = 80563392. Its totient is φ = 34294848.

The previous prime is 55917839. The next prime is 55917857. The reversal of 55917849 is 94871955.

It is not a de Polignac number, because 55917849 - 2⁴ = 55917833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55917798 and 55917807.

It is not an unprimeable number, because it can be changed into a prime (55917839) 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, 10102 + ... + 14624.

It is an arithmetic number, because the mean of its divisors is an integer number (5035212).

Almost surely, 2^55917849 is an apocalyptic number.

It is an amenable number.

55917849 is a deficient number, since it is larger than the sum of its proper divisors (24645543).

55917849 is a wasteful number, since it uses less digits than its factorization.

55917849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4856.

The product of its digits is 453600, while the sum is 48.

The square root of 55917849 is about 7477.8238144530. The cubic root of 55917849 is about 382.3990626053.

The spelling of 55917849 in words is "fifty-five million, nine hundred seventeen thousand, eight hundred forty-nine".