54432077523781 has 2 divisors, whose sum is σ = 54432077523782. Its totient is φ = 54432077523780.

The previous prime is 54432077523757. The next prime is 54432077523809. The reversal of 54432077523781 is 18732577023445.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54333852322500 + 98225201281 = 7371150^2 + 313409^2 .

It is a cyclic number.

It is not a de Polignac number, because 54432077523781 - 2⁵ = 54432077523749 is a prime.

It is a super-2 number, since 2×54432077523781² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54432077523701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27216038761890 + 27216038761891.

It is an arithmetic number, because the mean of its divisors is an integer number (27216038761891).

Almost surely, 2^{54432077523781} is an apocalyptic number.

It is an amenable number.

54432077523781 is a deficient number, since it is larger than the sum of its proper divisors (1).

54432077523781 is an equidigital number, since it uses as much as digits as its factorization.

54432077523781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39513600, while the sum is 58.

The spelling of 54432077523781 in words is "fifty-four trillion, four hundred thirty-two billion, seventy-seven million, five hundred twenty-three thousand, seven hundred eighty-one".