55887433073 has 2 divisors, whose sum is σ = 55887433074. Its totient is φ = 55887433072.

The previous prime is 55887433033. The next prime is 55887433079. The reversal of 55887433073 is 37033478855.

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., 35121758464 + 20765674609 = 187408^2 + 144103^2 .

It is a cyclic number.

It is not a de Polignac number, because 55887433073 - 2¹⁸ = 55887170929 is a prime.

It is not a weakly prime, because it can be changed into another prime (55887433079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27943716536 + 27943716537.

It is an arithmetic number, because the mean of its divisors is an integer number (27943716537).

Almost surely, 2^55887433073 is an apocalyptic number.

It is an amenable number.

55887433073 is a deficient number, since it is larger than the sum of its proper divisors (1).

55887433073 is an equidigital number, since it uses as much as digits as its factorization.

55887433073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 53.

The spelling of 55887433073 in words is "fifty-five billion, eight hundred eighty-seven million, four hundred thirty-three thousand, seventy-three".