55449875 has 16 divisors (see below), whose sum is σ = 74526816. Its totient is φ = 40946400.

The previous prime is 55449871. The next prime is 55449881. The reversal of 55449875 is 57894455.

It is a happy number.

It is not a de Polignac number, because 55449875 - 2² = 55449871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55449871) 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, 15437 + ... + 18686.

It is an arithmetic number, because the mean of its divisors is an integer number (4657926).

Almost surely, 2^55449875 is an apocalyptic number.

55449875 is a deficient number, since it is larger than the sum of its proper divisors (19076941).

55449875 is a wasteful number, since it uses less digits than its factorization.

55449875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34151 (or 34141 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 47.

The square root of 55449875 is about 7446.4672832156. The cubic root of 55449875 is about 381.3293125327.

The spelling of 55449875 in words is "fifty-five million, four hundred forty-nine thousand, eight hundred seventy-five".