55940101905 has 16 divisors (see below), whose sum is σ = 89524895040. Its totient is φ = 29827810368.

The previous prime is 55940101897. The next prime is 55940101907. The reversal of 55940101905 is 50910104955.

It is not a de Polignac number, because 55940101905 - 2³ = 55940101897 is a prime.

It is a super-2 number, since 2×55940101905² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55940101907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364662 + ... + 494831.

It is an arithmetic number, because the mean of its divisors is an integer number (5595305940).

Almost surely, 2^55940101905 is an apocalyptic number.

It is an amenable number.

55940101905 is a deficient number, since it is larger than the sum of its proper divisors (33584793135).

55940101905 is a wasteful number, since it uses less digits than its factorization.

55940101905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863840.

The product of its (nonzero) digits is 40500, while the sum is 39.

The spelling of 55940101905 in words is "fifty-five billion, nine hundred forty million, one hundred one thousand, nine hundred five".