2054538948421 has 2 divisors, whose sum is σ = 2054538948422. Its totient is φ = 2054538948420.

The previous prime is 2054538948389. The next prime is 2054538948463. The reversal of 2054538948421 is 1248498354502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1368640272321 + 685898676100 = 1169889^2 + 828190^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054538948421 - 2⁵ = 2054538948389 is a prime.

It is a super-2 number, since 2×2054538948421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054578948421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027269474210 + 1027269474211.

It is an arithmetic number, because the mean of its divisors is an integer number (1027269474211).

Almost surely, 2^{2054538948421} is an apocalyptic number.

It is an amenable number.

2054538948421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054538948421 is an equidigital number, since it uses as much as digits as its factorization.

2054538948421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11059200, while the sum is 55.

The spelling of 2054538948421 in words is "two trillion, fifty-four billion, five hundred thirty-eight million, nine hundred forty-eight thousand, four hundred twenty-one".