55153512497 has 2 divisors, whose sum is σ = 55153512498. Its totient is φ = 55153512496.

The previous prime is 55153512439. The next prime is 55153512503. The reversal of 55153512497 is 79421535155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44440434481 + 10713078016 = 210809^2 + 103504^2 .

It is a cyclic number.

It is not a de Polignac number, because 55153512497 - 2²⁸ = 54885077041 is a prime.

It is not a weakly prime, because it can be changed into another prime (55150512497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27576756248 + 27576756249.

It is an arithmetic number, because the mean of its divisors is an integer number (27576756249).

Almost surely, 2^55153512497 is an apocalyptic number.

It is an amenable number.

55153512497 is a deficient number, since it is larger than the sum of its proper divisors (1).

55153512497 is an equidigital number, since it uses as much as digits as its factorization.

55153512497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 945000, while the sum is 47.

The spelling of 55153512497 in words is "fifty-five billion, one hundred fifty-three million, five hundred twelve thousand, four hundred ninety-seven".