54440542361 has 2 divisors, whose sum is σ = 54440542362. Its totient is φ = 54440542360.

The previous prime is 54440542313. The next prime is 54440542381. The reversal of 54440542361 is 16324504445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28818457600 + 25622084761 = 169760^2 + 160069^2 .

It is a cyclic number.

It is not a de Polignac number, because 54440542361 - 2¹⁸ = 54440280217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (54440542381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27220271180 + 27220271181.

It is an arithmetic number, because the mean of its divisors is an integer number (27220271181).

Almost surely, 2^54440542361 is an apocalyptic number.

It is an amenable number.

54440542361 is a deficient number, since it is larger than the sum of its proper divisors (1).

54440542361 is an equidigital number, since it uses as much as digits as its factorization.

54440542361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 54440542361 in words is "fifty-four billion, four hundred forty million, five hundred forty-two thousand, three hundred sixty-one".