55001085457 has 2 divisors, whose sum is σ = 55001085458. Its totient is φ = 55001085456.

The previous prime is 55001085341. The next prime is 55001085481. The reversal of 55001085457 is 75458010055.

It is a happy number.

55001085457 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., 35963708881 + 19037376576 = 189641^2 + 137976^2 .

It is a cyclic number.

It is not a de Polignac number, because 55001085457 - 2³¹ = 52853601809 is a prime.

It is not a weakly prime, because it can be changed into another prime (55001083457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500542728 + 27500542729.

It is an arithmetic number, because the mean of its divisors is an integer number (27500542729).

Almost surely, 2^55001085457 is an apocalyptic number.

It is an amenable number.

55001085457 is a deficient number, since it is larger than the sum of its proper divisors (1).

55001085457 is an equidigital number, since it uses as much as digits as its factorization.

55001085457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140000, while the sum is 40.

The spelling of 55001085457 in words is "fifty-five billion, one million, eighty-five thousand, four hundred fifty-seven".