54519481 has 4 divisors (see below), whose sum is σ = 55443600. Its totient is φ = 53595364.

The previous prime is 54519469. The next prime is 54519503. The reversal of 54519481 is 18491545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 54519481 - 2¹¹ = 54517433 is a prime.

It is a super-2 number, since 2×54519481² = 5944747617018722, which contains 22 as substring.

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 54519481.

It is not an unprimeable number, because it can be changed into a prime (54519461) 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, 461971 + ... + 462088.

It is an arithmetic number, because the mean of its divisors is an integer number (13860900).

Almost surely, 2^54519481 is an apocalyptic number.

It is an amenable number.

54519481 is a deficient number, since it is larger than the sum of its proper divisors (924119).

54519481 is an equidigital number, since it uses as much as digits as its factorization.

54519481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924118.

The product of its digits is 28800, while the sum is 37.

The square root of 54519481 is about 7383.7308320388. The cubic root of 54519481 is about 379.1844953551.

The spelling of 54519481 in words is "fifty-four million, five hundred nineteen thousand, four hundred eighty-one".