54874381 has 2 divisors, whose sum is σ = 54874382. Its totient is φ = 54874380.

The previous prime is 54874361. The next prime is 54874387. The reversal of 54874381 is 18347845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54686025 + 188356 = 7395^2 + 434^2 .

It is a cyclic number.

It is not a de Polignac number, because 54874381 - 2¹¹ = 54872333 is a prime.

It is a super-2 number, since 2×54874381² = 6022395380266322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54874387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27437190 + 27437191.

It is an arithmetic number, because the mean of its divisors is an integer number (27437191).

Almost surely, 2^54874381 is an apocalyptic number.

It is an amenable number.

54874381 is a deficient number, since it is larger than the sum of its proper divisors (1).

54874381 is an equidigital number, since it uses as much as digits as its factorization.

54874381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 40.

The square root of 54874381 is about 7407.7244144204. The cubic root of 54874381 is about 380.0054962271.

It can be divided in two parts, 54874 and 381, that added together give a palindrome (55255).

The spelling of 54874381 in words is "fifty-four million, eight hundred seventy-four thousand, three hundred eighty-one".