55005798400 has 672 divisors, whose sum is σ = 172303025472. Its totient is φ = 16986931200.

The previous prime is 55005798389. The next prime is 55005798443. The reversal of 55005798400 is 489750055.

It is a congruent number.

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, 901734370 + ... + 901734430.

Almost surely, 2^55005798400 is an apocalyptic number.

55005798400 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 55005798400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86151512736).

55005798400 is an abundant number, since it is smaller than the sum of its proper divisors (117297227072).

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

55005798400 is a wasteful number, since it uses less digits than its factorization.

55005798400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 55005798400 in words is "fifty-five billion, five million, seven hundred ninety-eight thousand, four hundred".