55453191 has 16 divisors (see below), whose sum is σ = 80515200. Its totient is φ = 33814368.

The previous prime is 55453183. The next prime is 55453193. The reversal of 55453191 is 19135455.

It is not a de Polignac number, because 55453191 - 2³ = 55453183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55453193) 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, 15121 + ... + 18426.

It is an arithmetic number, because the mean of its divisors is an integer number (5032200).

Almost surely, 2^55453191 is an apocalyptic number.

55453191 is a deficient number, since it is larger than the sum of its proper divisors (25062009).

55453191 is a wasteful number, since it uses less digits than its factorization.

55453191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33598.

The product of its digits is 13500, while the sum is 33.

The square root of 55453191 is about 7446.6899358037. The cubic root of 55453191 is about 381.3369137689.

The spelling of 55453191 in words is "fifty-five million, four hundred fifty-three thousand, one hundred ninety-one".