55319040401 has 2 divisors, whose sum is σ = 55319040402. Its totient is φ = 55319040400.

The previous prime is 55319040331. The next prime is 55319040463. The reversal of 55319040401 is 10404091355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29902709776 + 25416330625 = 172924^2 + 159425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55319040401 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 (55319010401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27659520200 + 27659520201.

It is an arithmetic number, because the mean of its divisors is an integer number (27659520201).

Almost surely, 2^55319040401 is an apocalyptic number.

It is an amenable number.

55319040401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55319040401 is an equidigital number, since it uses as much as digits as its factorization.

55319040401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 55319040401 in words is "fifty-five billion, three hundred nineteen million, forty thousand, four hundred one".