55647447001 has 4 divisors (see below), whose sum is σ = 55650149172. Its totient is φ = 55644744832.

The previous prime is 55647446999. The next prime is 55647447101. The reversal of 55647447001 is 10074474655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22632193600 + 33015253401 = 150440^2 + 181701^2 .

It is a cyclic number.

It is not a de Polignac number, because 55647447001 - 2¹ = 55647446999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55647447101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319956 + ... + 1361461.

It is an arithmetic number, because the mean of its divisors is an integer number (13912537293).

Almost surely, 2^55647447001 is an apocalyptic number.

It is an amenable number.

55647447001 is a deficient number, since it is larger than the sum of its proper divisors (2702171).

55647447001 is a wasteful number, since it uses less digits than its factorization.

55647447001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702170.

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 55647447001 in words is "fifty-five billion, six hundred forty-seven million, four hundred forty-seven thousand, one".