54639533441 has 2 divisors, whose sum is σ = 54639533442. Its totient is φ = 54639533440.

The previous prime is 54639533419. The next prime is 54639533453. The reversal of 54639533441 is 14433593645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52166560000 + 2472973441 = 228400^2 + 49729^2 .

It is a cyclic number.

It is not a de Polignac number, because 54639533441 - 2¹⁰ = 54639532417 is a prime.

It is a super-2 number, since 2×54639533441² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54639533411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27319766720 + 27319766721.

It is an arithmetic number, because the mean of its divisors is an integer number (27319766721).

Almost surely, 2^54639533441 is an apocalyptic number.

It is an amenable number.

54639533441 is a deficient number, since it is larger than the sum of its proper divisors (1).

54639533441 is an equidigital number, since it uses as much as digits as its factorization.

54639533441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 47.

The spelling of 54639533441 in words is "fifty-four billion, six hundred thirty-nine million, five hundred thirty-three thousand, four hundred forty-one".