55942171960 has 64 divisors (see below), whose sum is σ = 133372339200. Its totient is φ = 21058704000.

The previous prime is 55942171951. The next prime is 55942171963. The reversal of 55942171960 is 6917124955.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55942171963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128976 + ... + 358495.

It is an arithmetic number, because the mean of its divisors is an integer number (2083942800).

Almost surely, 2^55942171960 is an apocalyptic number.

It is an amenable number.

55942171960 is an abundant number, since it is smaller than the sum of its proper divisors (77430167240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55942171960 is a wasteful number, since it uses less digits than its factorization.

55942171960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487652 (or 487648 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 55942171960 in words is "fifty-five billion, nine hundred forty-two million, one hundred seventy-one thousand, nine hundred sixty".