55649550001 has 2 divisors, whose sum is σ = 55649550002. Its totient is φ = 55649550000.

The previous prime is 55649549993. The next prime is 55649550043. The reversal of 55649550001 is 10005594655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30312551025 + 25336998976 = 174105^2 + 159176^2 .

It is a cyclic number.

It is not a de Polignac number, because 55649550001 - 2³ = 55649549993 is a prime.

It is not a weakly prime, because it can be changed into another prime (55649580001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27824775000 + 27824775001.

It is an arithmetic number, because the mean of its divisors is an integer number (27824775001).

Almost surely, 2^55649550001 is an apocalyptic number.

It is an amenable number.

55649550001 is a deficient number, since it is larger than the sum of its proper divisors (1).

55649550001 is an equidigital number, since it uses as much as digits as its factorization.

55649550001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 55649550001 in words is "fifty-five billion, six hundred forty-nine million, five hundred fifty thousand, one".