550157400 has 384 divisors, whose sum is σ = 2165486400. Its totient is φ = 127180800.

The previous prime is 550157357. The next prime is 550157411. The reversal of 550157400 is 4751055.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1193170 + ... + 1193630.

Almost surely, 2^550157400 is an apocalyptic number.

550157400 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 550157400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082743200).

550157400 is an abundant number, since it is smaller than the sum of its proper divisors (1615329000).

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

550157400 is a wasteful number, since it uses less digits than its factorization.

550157400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 550157400 is about 23455.4343383362. The cubic root of 550157400 is about 819.3994214296.

The spelling of 550157400 in words is "five hundred fifty million, one hundred fifty-seven thousand, four hundred".