54597661477 has 2 divisors, whose sum is σ = 54597661478. Its totient is φ = 54597661476.

The previous prime is 54597661471. The next prime is 54597661631. The reversal of 54597661477 is 77416679545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32915393476 + 21682268001 = 181426^2 + 147249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54597661477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54597661471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27298830738 + 27298830739.

It is an arithmetic number, because the mean of its divisors is an integer number (27298830739).

Almost surely, 2^54597661477 is an apocalyptic number.

It is an amenable number.

54597661477 is a deficient number, since it is larger than the sum of its proper divisors (1).

54597661477 is an equidigital number, since it uses as much as digits as its factorization.

54597661477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44452800, while the sum is 61.

The spelling of 54597661477 in words is "fifty-four billion, five hundred ninety-seven million, six hundred sixty-one thousand, four hundred seventy-seven".