55074187 has 12 divisors (see below), whose sum is σ = 64482960. Its totient is φ = 46899216.

The previous prime is 55074143. The next prime is 55074191. The reversal of 55074187 is 78147055.

55074187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-55074187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55074127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4114 + ... + 11272.

It is an arithmetic number, because the mean of its divisors is an integer number (5373580).

Almost surely, 2^55074187 is an apocalyptic number.

55074187 is a deficient number, since it is larger than the sum of its proper divisors (9408773).

55074187 is a wasteful number, since it uses less digits than its factorization.

55074187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330 (or 7323 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 55074187 is about 7421.1984881150. The cubic root of 55074187 is about 380.4661569116.

The spelling of 55074187 in words is "fifty-five million, seventy-four thousand, one hundred eighty-seven".