55091141 has 12 divisors (see below), whose sum is σ = 66873312. Its totient is φ = 45166968.

The previous prime is 55091137. The next prime is 55091147. The reversal of 55091141 is 14119055.

It is not a de Polignac number, because 55091141 - 2² = 55091137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55091141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55091147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23315 + ... + 25568.

It is an arithmetic number, because the mean of its divisors is an integer number (5572776).

Almost surely, 2^55091141 is an apocalyptic number.

It is an amenable number.

55091141 is a deficient number, since it is larger than the sum of its proper divisors (11782171).

55091141 is a wasteful number, since it uses less digits than its factorization.

55091141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48920 (or 48913 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 55091141 is about 7422.3406685492. The cubic root of 55091141 is about 380.5051937199.

The spelling of 55091141 in words is "fifty-five million, ninety-one thousand, one hundred forty-one".