550851408 has 160 divisors (see below), whose sum is σ = 1692213120. Its totient is φ = 170956800.

The previous prime is 550851407. The next prime is 550851409. The reversal of 550851408 is 804158055.

550851408 is a `hidden beast` number, since 5 + 508 + 5 + 140 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (550851407) and next prime (550851409).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550851407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 785458 + ... + 786158.

It is an arithmetic number, because the mean of its divisors is an integer number (10576332).

Almost surely, 2^550851408 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 550851408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846106560).

550851408 is an abundant number, since it is smaller than the sum of its proper divisors (1141361712).

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

550851408 is a wasteful number, since it uses less digits than its factorization.

550851408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 550851408 is about 23470.2238591795. The cubic root of 550851408 is about 819.7438263829.

The spelling of 550851408 in words is "five hundred fifty million, eight hundred fifty-one thousand, four hundred eight".