55354789877 has 2 divisors, whose sum is σ = 55354789878. Its totient is φ = 55354789876.

The previous prime is 55354789813. The next prime is 55354789883. The reversal of 55354789877 is 77898745355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32175031876 + 23179758001 = 179374^2 + 152249^2 .

It is a cyclic number.

It is not a de Polignac number, because 55354789877 - 2⁶ = 55354789813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55354789277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27677394938 + 27677394939.

It is an arithmetic number, because the mean of its divisors is an integer number (27677394939).

Almost surely, 2^55354789877 is an apocalyptic number.

It is an amenable number.

55354789877 is a deficient number, since it is larger than the sum of its proper divisors (1).

55354789877 is an equidigital number, since it uses as much as digits as its factorization.

55354789877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352000, while the sum is 68.

The spelling of 55354789877 in words is "fifty-five billion, three hundred fifty-four million, seven hundred eighty-nine thousand, eight hundred seventy-seven".