55940908641 has 8 divisors (see below), whose sum is σ = 75609630240. Its totient is φ = 36783063072.

The previous prime is 55940908603. The next prime is 55940908643. The reversal of 55940908641 is 14680904955.

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

It is a de Polignac number, because none of the positive numbers 2^k-55940908641 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55940908643) 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, 127718751 + ... + 127719188.

It is an arithmetic number, because the mean of its divisors is an integer number (9451203780).

Almost surely, 2^55940908641 is an apocalyptic number.

It is an amenable number.

55940908641 is a deficient number, since it is larger than the sum of its proper divisors (19668721599).

55940908641 is a wasteful number, since it uses less digits than its factorization.

55940908641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255438015.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 55940908641 in words is "fifty-five billion, nine hundred forty million, nine hundred eight thousand, six hundred forty-one".