54357484742257 has 2 divisors, whose sum is σ = 54357484742258. Its totient is φ = 54357484742256.

The previous prime is 54357484742173. The next prime is 54357484742291. The reversal of 54357484742257 is 75224748475345.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52916546189376 + 1440938552881 = 7274376^2 + 1200391^2 .

It is a cyclic number.

It is not a de Polignac number, because 54357484742257 - 2⁴³ = 45561391720049 is a prime.

It is a super-2 number, since 2×54357484742257² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54357484742192 and 54357484742201.

It is not a weakly prime, because it can be changed into another prime (54357484142257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27178742371128 + 27178742371129.

It is an arithmetic number, because the mean of its divisors is an integer number (27178742371129).

Almost surely, 2^{54357484742257} is an apocalyptic number.

It is an amenable number.

54357484742257 is a deficient number, since it is larger than the sum of its proper divisors (1).

54357484742257 is an equidigital number, since it uses as much as digits as its factorization.

54357484742257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1053696000, while the sum is 67.

The spelling of 54357484742257 in words is "fifty-four trillion, three hundred fifty-seven billion, four hundred eighty-four million, seven hundred forty-two thousand, two hundred fifty-seven".