55910817312 has 288 divisors, whose sum is σ = 177681530880. Its totient is φ = 15332405760.

The previous prime is 55910817301. The next prime is 55910817341. The reversal of 55910817312 is 21371801955.

It is a super-3 number, since 3×55910817312³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18518139 + ... + 18521157.

It is an arithmetic number, because the mean of its divisors is an integer number (616949760).

Almost surely, 2^55910817312 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 55910817312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88840765440).

55910817312 is an abundant number, since it is smaller than the sum of its proper divisors (121770713568).

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

55910817312 is a wasteful number, since it uses less digits than its factorization.

55910817312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 3189 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 42.

The spelling of 55910817312 in words is "fifty-five billion, nine hundred ten million, eight hundred seventeen thousand, three hundred twelve".