55673011397 has 2 divisors, whose sum is σ = 55673011398. Its totient is φ = 55673011396.

The previous prime is 55673011351. The next prime is 55673011403. The reversal of 55673011397 is 79311037655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45611717761 + 10061293636 = 213569^2 + 100306^2 .

It is a cyclic number.

It is not a de Polignac number, because 55673011397 - 2⁶ = 55673011333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55673011327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27836505698 + 27836505699.

It is an arithmetic number, because the mean of its divisors is an integer number (27836505699).

Almost surely, 2^55673011397 is an apocalyptic number.

It is an amenable number.

55673011397 is a deficient number, since it is larger than the sum of its proper divisors (1).

55673011397 is an equidigital number, since it uses as much as digits as its factorization.

55673011397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 595350, while the sum is 47.

The spelling of 55673011397 in words is "fifty-five billion, six hundred seventy-three million, eleven thousand, three hundred ninety-seven".