55907399112 has 96 divisors (see below), whose sum is σ = 148585298400. Its totient is φ = 17526409216.

The previous prime is 55907399081. The next prime is 55907399113. The reversal of 55907399112 is 21199370955.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (55907399113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13724308 + ... + 13728380.

It is an arithmetic number, because the mean of its divisors is an integer number (1547763525).

Almost surely, 2^55907399112 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 55907399112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74292649200).

55907399112 is an abundant number, since it is smaller than the sum of its proper divisors (92677899288).

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

55907399112 is a wasteful number, since it uses less digits than its factorization.

55907399112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095 (or 6074 counting only the distinct ones).

The product of its (nonzero) digits is 765450, while the sum is 51.

The spelling of 55907399112 in words is "fifty-five billion, nine hundred seven million, three hundred ninety-nine thousand, one hundred twelve".