54071581 has 2 divisors, whose sum is σ = 54071582. Its totient is φ = 54071580.

The previous prime is 54071569. The next prime is 54071593. The reversal of 54071581 is 18517045.

It is a balanced prime because it is at equal distance from previous prime (54071569) and next prime (54071593).

It can be written as a sum of positive squares in only one way, i.e., 48024900 + 6046681 = 6930^2 + 2459^2 .

It is a cyclic number.

It is not a de Polignac number, because 54071581 - 2⁷ = 54071453 is a prime.

It is a super-2 number, since 2×54071581² = 5847471743679122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54071561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27035790 + 27035791.

It is an arithmetic number, because the mean of its divisors is an integer number (27035791).

Almost surely, 2^54071581 is an apocalyptic number.

It is an amenable number.

54071581 is a deficient number, since it is larger than the sum of its proper divisors (1).

54071581 is an equidigital number, since it uses as much as digits as its factorization.

54071581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 54071581 is about 7353.3380855228. The cubic root of 54071581 is about 378.1432530951.

The spelling of 54071581 in words is "fifty-four million, seventy-one thousand, five hundred eighty-one".