550427904 has 432 divisors, whose sum is σ = 1928489472. Its totient is φ = 149225472.

The previous prime is 550427897. The next prime is 550427923. The reversal of 550427904 is 409724055.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 11711209 + ... + 11711255.

It is an arithmetic number, because the mean of its divisors is an integer number (4464096).

Almost surely, 2^550427904 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 550427904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964244736).

550427904 is an abundant number, since it is smaller than the sum of its proper divisors (1378061568).

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

550427904 is a wasteful number, since it uses less digits than its factorization.

550427904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 550427904 is about 23461.1999693110. The cubic root of 550427904 is about 819.5336948234.

The spelling of 550427904 in words is "five hundred fifty million, four hundred twenty-seven thousand, nine hundred four".