55849400 has 48 divisors (see below), whose sum is σ = 132078600. Its totient is φ = 21956480.

The previous prime is 55849363. The next prime is 55849427. The reversal of 55849400 is 494855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9434 + ... + 14166.

Almost surely, 2^55849400 is an apocalyptic number.

55849400 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 55849400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66039300).

55849400 is an abundant number, since it is smaller than the sum of its proper divisors (76229200).

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

55849400 is a wasteful number, since it uses less digits than its factorization.

55849400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808 (or 4799 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 55849400 is about 7473.2456135203. The cubic root of 55849400 is about 382.2429674206.

The spelling of 55849400 in words is "fifty-five million, eight hundred forty-nine thousand, four hundred".