55757729104 has 240 divisors, whose sum is σ = 140326018560. Its totient is φ = 20840244480.

The previous prime is 55757729033. The next prime is 55757729107. The reversal of 55757729104 is 40192775755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55757729107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 521100219 + ... + 521100325.

It is an arithmetic number, because the mean of its divisors is an integer number (584691744).

Almost surely, 2^55757729104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55757729104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70163009280).

55757729104 is an abundant number, since it is smaller than the sum of its proper divisors (84568289456).

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

55757729104 is a wasteful number, since it uses less digits than its factorization.

55757729104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 3087000, while the sum is 52.

The spelling of 55757729104 in words is "fifty-five billion, seven hundred fifty-seven million, seven hundred twenty-nine thousand, one hundred four".