55501050010001 has 2 divisors, whose sum is σ = 55501050010002. Its totient is φ = 55501050010000.

The previous prime is 55501050009901. The next prime is 55501050010031. The reversal of 55501050010001 is 10001005010555.

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., 36134537462401 + 19366512547600 = 6011201^2 + 4400740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55501050010001 is a prime.

It is not a weakly prime, because it can be changed into another prime (55501050010031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750525005000 + 27750525005001.

It is an arithmetic number, because the mean of its divisors is an integer number (27750525005001).

Almost surely, 2^{55501050010001} is an apocalyptic number.

It is an amenable number.

55501050010001 is a deficient number, since it is larger than the sum of its proper divisors (1).

55501050010001 is an equidigital number, since it uses as much as digits as its factorization.

55501050010001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 55501050010001 its reverse (10001005010555), we get a palindrome (65502055020556).

The spelling of 55501050010001 in words is "fifty-five trillion, five hundred one billion, fifty million, ten thousand, one".