55798416 has 80 divisors (see below), whose sum is σ = 161150400. Its totient is φ = 18484992.

The previous prime is 55798387. The next prime is 55798427. The reversal of 55798416 is 61489755.

55798416 is a `hidden beast` number, since 557 + 9 + 84 + 16 = 666.

It is a super-2 number, since 2×55798416² = 6226926456218112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97780 + ... + 98348.

It is an arithmetic number, because the mean of its divisors is an integer number (2014380).

Almost surely, 2^55798416 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 55798416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80575200).

55798416 is an abundant number, since it is smaller than the sum of its proper divisors (105351984).

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

55798416 is a wasteful number, since it uses less digits than its factorization.

55798416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 801 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 55798416 is about 7469.8337330894. The cubic root of 55798416 is about 382.1266175664.

The spelling of 55798416 in words is "fifty-five million, seven hundred ninety-eight thousand, four hundred sixteen".