55377189 has 40 divisors (see below), whose sum is σ = 95576448. Its totient is φ = 31298400.

The previous prime is 55377173. The next prime is 55377193. The reversal of 55377189 is 98177355.

It is not a de Polignac number, because 55377189 - 2⁴ = 55377173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55377149) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 56784 + ... + 57750.

Almost surely, 2^55377189 is an apocalyptic number.

It is an amenable number.

55377189 is a deficient number, since it is larger than the sum of its proper divisors (40199259).

55377189 is a wasteful number, since it uses less digits than its factorization.

55377189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1078 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 55377189 is about 7441.5851134016. The cubic root of 55377189 is about 381.1626189063.

The spelling of 55377189 in words is "fifty-five million, three hundred seventy-seven thousand, one hundred eighty-nine".