54011381 has 2 divisors, whose sum is σ = 54011382. Its totient is φ = 54011380.

The previous prime is 54011359. The next prime is 54011437. The reversal of 54011381 is 18311045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41344900 + 12666481 = 6430^2 + 3559^2 .

It is a cyclic number.

It is not a de Polignac number, because 54011381 - 2⁶ = 54011317 is a prime.

It is a super-2 number, since 2×54011381² = 5834458555054322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54011351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27005690 + 27005691.

It is an arithmetic number, because the mean of its divisors is an integer number (27005691).

Almost surely, 2^54011381 is an apocalyptic number.

It is an amenable number.

54011381 is a deficient number, since it is larger than the sum of its proper divisors (1).

54011381 is an equidigital number, since it uses as much as digits as its factorization.

54011381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 54011381 is about 7349.2435665176. The cubic root of 54011381 is about 378.0028671059.

The spelling of 54011381 in words is "fifty-four million, eleven thousand, three hundred eighty-one".