54133381 has 4 divisors (see below), whose sum is σ = 54157792. Its totient is φ = 54108972.

The previous prime is 54133379. The next prime is 54133393. The reversal of 54133381 is 18333145.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18333145 = 5 ⋅3666629.

It is a cyclic number.

It is not a de Polignac number, because 54133381 - 2¹ = 54133379 is a prime.

It is a super-2 number, since 2×54133381² = 5860845876982322, 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 (54133481) 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, 8505 + ... + 13438.

It is an arithmetic number, because the mean of its divisors is an integer number (13539448).

Almost surely, 2^54133381 is an apocalyptic number.

It is an amenable number.

54133381 is a deficient number, since it is larger than the sum of its proper divisors (24411).

54133381 is a wasteful number, since it uses less digits than its factorization.

54133381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24410.

The product of its digits is 4320, while the sum is 28.

The square root of 54133381 is about 7357.5390586799. The cubic root of 54133381 is about 378.2872619264.

The spelling of 54133381 in words is "fifty-four million, one hundred thirty-three thousand, three hundred eighty-one".