54448891 has 4 divisors (see below), whose sum is σ = 62227312. Its totient is φ = 46670472.

The previous prime is 54448873. The next prime is 54448903. The reversal of 54448891 is 19884445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54448891 - 2⁵ = 54448859 is a prime.

It is a super-2 number, since 2×54448891² = 5929363462259762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54448831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3889200 + ... + 3889213.

It is an arithmetic number, because the mean of its divisors is an integer number (15556828).

Almost surely, 2^54448891 is an apocalyptic number.

54448891 is a deficient number, since it is larger than the sum of its proper divisors (7778421).

54448891 is an equidigital number, since it uses as much as digits as its factorization.

54448891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778420.

The product of its digits is 184320, while the sum is 43.

The square root of 54448891 is about 7378.9491799307. The cubic root of 54448891 is about 379.0207728744.

The spelling of 54448891 in words is "fifty-four million, four hundred forty-eight thousand, eight hundred ninety-one".