554555400 has 288 divisors, whose sum is σ = 2047755840. Its totient is φ = 121605120.

The previous prime is 554555389. The next prime is 554555423. The reversal of 554555400 is 4555455.

It is a Cunningham number, because it is equal to 23549²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3532122 + ... + 3532278.

Almost surely, 2^554555400 is an apocalyptic number.

554555400 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 554555400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023877920).

554555400 is an abundant number, since it is smaller than the sum of its proper divisors (1493200440).

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

554555400 is a wasteful number, since it uses less digits than its factorization.

554555400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 33.

The square root of 554555400 is about 23548.9999787677. Note that the first 4 decimals coincide. The cubic root of 554555400 is about 821.5770759681.

Subtracting from 554555400 its reverse (4555455), we obtain a palindrome (549999945).

The spelling of 554555400 in words is "five hundred fifty-four million, five hundred fifty-five thousand, four hundred".