54021333344357 has 2 divisors, whose sum is σ = 54021333344358. Its totient is φ = 54021333344356.

The previous prime is 54021333344351. The next prime is 54021333344449. The reversal of 54021333344357 is 75344333312045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39729901623556 + 14291431720801 = 6303166^2 + 3780401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54021333344357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54021333344351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27010666672178 + 27010666672179.

It is an arithmetic number, because the mean of its divisors is an integer number (27010666672179).

Almost surely, 2^{54021333344357} is an apocalyptic number.

It is an amenable number.

54021333344357 is a deficient number, since it is larger than the sum of its proper divisors (1).

54021333344357 is an equidigital number, since it uses as much as digits as its factorization.

54021333344357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 47.

The spelling of 54021333344357 in words is "fifty-four trillion, twenty-one billion, three hundred thirty-three million, three hundred forty-four thousand, three hundred fifty-seven".