54441815 has 8 divisors (see below), whose sum is σ = 65435040. Its totient is φ = 43483552.

The previous prime is 54441811. The next prime is 54441841. The reversal of 54441815 is 51814445.

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 54441815 - 2² = 54441811 is a prime.

It is a super-2 number, since 2×54441815² = 5927822440988450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54441811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5180 + ... + 11649.

It is an arithmetic number, because the mean of its divisors is an integer number (8179380).

Almost surely, 2^54441815 is an apocalyptic number.

54441815 is a deficient number, since it is larger than the sum of its proper divisors (10993225).

54441815 is a wasteful number, since it uses less digits than its factorization.

54441815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17481.

The product of its digits is 12800, while the sum is 32.

The square root of 54441815 is about 7378.4696922871. The cubic root of 54441815 is about 379.0043533960.

The spelling of 54441815 in words is "fifty-four million, four hundred forty-one thousand, eight hundred fifteen".