54191822 has 4 divisors (see below), whose sum is σ = 81287736. Its totient is φ = 27095910.

The previous prime is 54191783. The next prime is 54191827. The reversal of 54191822 is 22819145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22819145 = 5 ⋅4563829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54191827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13547954 + ... + 13547957.

It is an arithmetic number, because the mean of its divisors is an integer number (20321934).

Almost surely, 2^54191822 is an apocalyptic number.

54191822 is a deficient number, since it is larger than the sum of its proper divisors (27095914).

54191822 is a wasteful number, since it uses less digits than its factorization.

54191822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27095913.

The product of its digits is 5760, while the sum is 32.

The square root of 54191822 is about 7361.5094919452. The cubic root of 54191822 is about 378.4233426877.

The spelling of 54191822 in words is "fifty-four million, one hundred ninety-one thousand, eight hundred twenty-two".