54544381 has 4 divisors (see below), whose sum is σ = 57752892. Its totient is φ = 51335872.

The previous prime is 54544351. The next prime is 54544397. The reversal of 54544381 is 18344545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18344545 = 5 ⋅3668909.

It can be written as a sum of positive squares in 2 ways, for example, as 16475481 + 38068900 = 4059^2 + 6170^2 .

It is a cyclic number.

It is not a de Polignac number, because 54544381 - 2⁵ = 54544349 is a prime.

It is a super-2 number, since 2×54544381² = 5950178997346322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54544351) 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, 1604230 + ... + 1604263.

It is an arithmetic number, because the mean of its divisors is an integer number (14438223).

Almost surely, 2^54544381 is an apocalyptic number.

It is an amenable number.

54544381 is a deficient number, since it is larger than the sum of its proper divisors (3208511).

54544381 is a wasteful number, since it uses less digits than its factorization.

54544381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208510.

The product of its digits is 38400, while the sum is 34.

The square root of 54544381 is about 7385.4167790315. The cubic root of 54544381 is about 379.2422132982.

The spelling of 54544381 in words is "fifty-four million, five hundred forty-four thousand, three hundred eighty-one".