55653191 has 8 divisors (see below), whose sum is σ = 60896784. Its totient is φ = 50440320.

The previous prime is 55653187. The next prime is 55653193. The reversal of 55653191 is 19135655.

It is a happy number.

55653191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55653191 - 2² = 55653187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55653193) 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 7 ways as a sum of consecutive naturals, for example, 3800 + ... + 11213.

It is an arithmetic number, because the mean of its divisors is an integer number (7612098).

Almost surely, 2^55653191 is an apocalyptic number.

55653191 is a deficient number, since it is larger than the sum of its proper divisors (5243593).

55653191 is a wasteful number, since it uses less digits than its factorization.

55653191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15361.

The product of its digits is 20250, while the sum is 35.

The square root of 55653191 is about 7460.1066346266. The cubic root of 55653191 is about 381.7948127335.

The spelling of 55653191 in words is "fifty-five million, six hundred fifty-three thousand, one hundred ninety-one".