55640140201 has 8 divisors (see below), whose sum is σ = 57148903304. Its totient is φ = 54131639040.

The previous prime is 55640140159. The next prime is 55640140229. The reversal of 55640140201 is 10204104655.

55640140201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 41532402025 + 14107738176 = 203795^2 + 118776^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55640140201 - 2⁹ = 55640139689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55640140201.

It is not an unprimeable number, because it can be changed into a prime (55640140271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411571 + ... + 529783.

It is an arithmetic number, because the mean of its divisors is an integer number (7143612913).

Almost surely, 2^55640140201 is an apocalyptic number.

It is an amenable number.

55640140201 is a deficient number, since it is larger than the sum of its proper divisors (1508763103).

55640140201 is a wasteful number, since it uses less digits than its factorization.

55640140201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130971.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 55640140201 its reverse (10204104655), we get a palindrome (65844244856).

The spelling of 55640140201 in words is "fifty-five billion, six hundred forty million, one hundred forty thousand, two hundred one".