54170732107021 has 2 divisors, whose sum is σ = 54170732107022. Its totient is φ = 54170732107020.

The previous prime is 54170732106991. The next prime is 54170732107027. The reversal of 54170732107021 is 12070123707145.

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., 53856723173796 + 314008933225 = 7338714^2 + 560365^2 .

It is a cyclic number.

It is not a de Polignac number, because 54170732107021 - 2¹⁵ = 54170732074253 is a prime.

It is a super-4 number, since 4×54170732107021⁴ (a number of 56 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54170732107027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27085366053510 + 27085366053511.

It is an arithmetic number, because the mean of its divisors is an integer number (27085366053511).

Almost surely, 2^{54170732107021} is an apocalyptic number.

It is an amenable number.

54170732107021 is a deficient number, since it is larger than the sum of its proper divisors (1).

54170732107021 is an equidigital number, since it uses as much as digits as its factorization.

54170732107021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 54170732107021 in words is "fifty-four trillion, one hundred seventy billion, seven hundred thirty-two million, one hundred seven thousand, twenty-one".