54801786121 has 2 divisors, whose sum is σ = 54801786122. Its totient is φ = 54801786120.

The previous prime is 54801786037. The next prime is 54801786131. The reversal of 54801786121 is 12168710845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35630337600 + 19171448521 = 188760^2 + 138461^2 .

It is a cyclic number.

It is not a de Polignac number, because 54801786121 - 2¹³ = 54801777929 is a prime.

It is not a weakly prime, because it can be changed into another prime (54801786131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27400893060 + 27400893061.

It is an arithmetic number, because the mean of its divisors is an integer number (27400893061).

Almost surely, 2^54801786121 is an apocalyptic number.

It is an amenable number.

54801786121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54801786121 is an equidigital number, since it uses as much as digits as its factorization.

54801786121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 54801786121 in words is "fifty-four billion, eight hundred one million, seven hundred eighty-six thousand, one hundred twenty-one".