54421397 has 2 divisors, whose sum is σ = 54421398. Its totient is φ = 54421396.

The previous prime is 54421387. The next prime is 54421481. The reversal of 54421397 is 79312445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31820881 + 22600516 = 5641^2 + 4754^2 .

It is a cyclic number.

It is not a de Polignac number, because 54421397 - 2¹² = 54417301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54421307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27210698 + 27210699.

It is an arithmetic number, because the mean of its divisors is an integer number (27210699).

Almost surely, 2^54421397 is an apocalyptic number.

It is an amenable number.

54421397 is a deficient number, since it is larger than the sum of its proper divisors (1).

54421397 is an equidigital number, since it uses as much as digits as its factorization.

54421397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 54421397 is about 7377.0859422946. The cubic root of 54421397 is about 378.9569665451.

The spelling of 54421397 in words is "fifty-four million, four hundred twenty-one thousand, three hundred ninety-seven".