54312481 has 2 divisors, whose sum is σ = 54312482. Its totient is φ = 54312480.

The previous prime is 54312457. The next prime is 54312487. The reversal of 54312481 is 18421345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33005025 + 21307456 = 5745^2 + 4616^2 .

It is a cyclic number.

It is not a de Polignac number, because 54312481 - 2⁵ = 54312449 is a prime.

It is a super-2 number, since 2×54312481² = 5899691184750722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54312487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27156240 + 27156241.

It is an arithmetic number, because the mean of its divisors is an integer number (27156241).

Almost surely, 2^54312481 is an apocalyptic number.

It is an amenable number.

54312481 is a deficient number, since it is larger than the sum of its proper divisors (1).

54312481 is an equidigital number, since it uses as much as digits as its factorization.

54312481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

The square root of 54312481 is about 7369.7001974300. The cubic root of 54312481 is about 378.7039898072.

The spelling of 54312481 in words is "fifty-four million, three hundred twelve thousand, four hundred eighty-one".