55912257600 has 504 divisors, whose sum is σ = 198575602848. Its totient is φ = 13763174400.

The previous prime is 55912257563. The next prime is 55912257613. The reversal of 55912257600 is 675221955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 71044407 + ... + 71045193.

It is an arithmetic number, because the mean of its divisors is an integer number (393999212).

Almost surely, 2^55912257600 is an apocalyptic number.

55912257600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55912257600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99287801424).

55912257600 is an abundant number, since it is smaller than the sum of its proper divisors (142663345248).

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

55912257600 is a wasteful number, since it uses less digits than its factorization.

55912257600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 55912257600 in words is "fifty-five billion, nine hundred twelve million, two hundred fifty-seven thousand, six hundred".