55134397457 has 2 divisors, whose sum is σ = 55134397458. Its totient is φ = 55134397456.

The previous prime is 55134397421. The next prime is 55134397477. The reversal of 55134397457 is 75479343155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29225953936 + 25908443521 = 170956^2 + 160961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55134397457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55134397399 and 55134397408.

It is not a weakly prime, because it can be changed into another prime (55134397477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27567198728 + 27567198729.

It is an arithmetic number, because the mean of its divisors is an integer number (27567198729).

Almost surely, 2^55134397457 is an apocalyptic number.

It is an amenable number.

55134397457 is a deficient number, since it is larger than the sum of its proper divisors (1).

55134397457 is an equidigital number, since it uses as much as digits as its factorization.

55134397457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938000, while the sum is 53.

The spelling of 55134397457 in words is "fifty-five billion, one hundred thirty-four million, three hundred ninety-seven thousand, four hundred fifty-seven".