54103321973 has 2 divisors, whose sum is σ = 54103321974. Its totient is φ = 54103321972.

The previous prime is 54103321913. The next prime is 54103322003. The reversal of 54103321973 is 37912330145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51174131089 + 2929190884 = 226217^2 + 54122^2 .

It is a cyclic number.

It is not a de Polignac number, because 54103321973 - 2¹⁶ = 54103256437 is a prime.

It is a super-2 number, since 2×54103321973² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54103321903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27051660986 + 27051660987.

It is an arithmetic number, because the mean of its divisors is an integer number (27051660987).

Almost surely, 2^54103321973 is an apocalyptic number.

It is an amenable number.

54103321973 is a deficient number, since it is larger than the sum of its proper divisors (1).

54103321973 is an equidigital number, since it uses as much as digits as its factorization.

54103321973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 54103321973 in words is "fifty-four billion, one hundred three million, three hundred twenty-one thousand, nine hundred seventy-three".