55720045760 has 56 divisors (see below), whose sum is σ = 132726415776. Its totient is φ = 22280785920.

The previous prime is 55720045747. The next prime is 55720045763. The reversal of 55720045760 is 6754002755.

It is not an unprimeable number, because it can be changed into a prime (55720045763) 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 7 ways as a sum of consecutive naturals, for example, 1020104 + ... + 1073336.

Almost surely, 2^55720045760 is an apocalyptic number.

It is an amenable number.

55720045760 is an abundant number, since it is smaller than the sum of its proper divisors (77006370016).

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

55720045760 is a wasteful number, since it uses less digits than its factorization.

55720045760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56521 (or 56511 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 41.

The spelling of 55720045760 in words is "fifty-five billion, seven hundred twenty million, forty-five thousand, seven hundred sixty".