55005279761 has 2 divisors, whose sum is σ = 55005279762. Its totient is φ = 55005279760.

The previous prime is 55005279569. The next prime is 55005279767. The reversal of 55005279761 is 16797250055.

55005279761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53261716225 + 1743563536 = 230785^2 + 41756^2 .

It is a cyclic number.

It is not a de Polignac number, because 55005279761 - 2²² = 55001085457 is a prime.

It is not a weakly prime, because it can be changed into another prime (55005279767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502639880 + 27502639881.

It is an arithmetic number, because the mean of its divisors is an integer number (27502639881).

Almost surely, 2^55005279761 is an apocalyptic number.

It is an amenable number.

55005279761 is a deficient number, since it is larger than the sum of its proper divisors (1).

55005279761 is an equidigital number, since it uses as much as digits as its factorization.

55005279761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 661500, while the sum is 47.

The spelling of 55005279761 in words is "fifty-five billion, five million, two hundred seventy-nine thousand, seven hundred sixty-one".