54721441 has 2 divisors, whose sum is σ = 54721442. Its totient is φ = 54721440.

The previous prime is 54721427. The next prime is 54721517. The reversal of 54721441 is 14412745.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44609041 + 10112400 = 6679^2 + 3180^2 .

It is a cyclic number.

It is not a de Polignac number, because 54721441 - 2⁷ = 54721313 is a prime.

It is a super-2 number, since 2×54721441² = 5988872210232962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54721411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27360720 + 27360721.

It is an arithmetic number, because the mean of its divisors is an integer number (27360721).

Almost surely, 2^54721441 is an apocalyptic number.

It is an amenable number.

54721441 is a deficient number, since it is larger than the sum of its proper divisors (1).

54721441 is an equidigital number, since it uses as much as digits as its factorization.

54721441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 28.

The square root of 54721441 is about 7397.3942033665. The cubic root of 54721441 is about 379.6521308572.

The spelling of 54721441 in words is "fifty-four million, seven hundred twenty-one thousand, four hundred forty-one".