55972889973 has 288 divisors, whose sum is σ = 116449062912. Its totient is φ = 26404963200.

The previous prime is 55972889957. The next prime is 55972890047. The reversal of 55972889973 is 37998827955.

55972889973 is a `hidden beast` number, since 5 + 597 + 28 + 8 + 9 + 9 + 7 + 3 = 666.

It is not a de Polignac number, because 55972889973 - 2⁴ = 55972889957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55972889173) 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 287 ways as a sum of consecutive naturals, for example, 120891540 + ... + 120892002.

It is an arithmetic number, because the mean of its divisors is an integer number (404337024).

Almost surely, 2^55972889973 is an apocalyptic number.

It is an amenable number.

55972889973 is an abundant number, since it is smaller than the sum of its proper divisors (60476172939).

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

55972889973 is a wasteful number, since it uses less digits than its factorization.

55972889973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 568 counting only the distinct ones).

The product of its digits is 342921600, while the sum is 72.

The spelling of 55972889973 in words is "fifty-five billion, nine hundred seventy-two million, eight hundred eighty-nine thousand, nine hundred seventy-three".