551673360 has 360 divisors, whose sum is σ = 2271372480. Its totient is φ = 119314944.

The previous prime is 551673313. The next prime is 551673391. The reversal of 551673360 is 63376155.

It is a happy number.

551673360 is a `hidden beast` number, since 551 + 6 + 73 + 36 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×551673360² = 608686992267379200, which contains 22 as substring.

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

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, 669909 + ... + 670731.

It is an arithmetic number, because the mean of its divisors is an integer number (6309368).

Almost surely, 2^551673360 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 551673360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1135686240).

551673360 is an abundant number, since it is smaller than the sum of its proper divisors (1719699120).

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

551673360 is a wasteful number, since it uses less digits than its factorization.

551673360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 551673360 is about 23487.7278594589. The cubic root of 551673360 is about 820.1513502110.

The spelling of 551673360 in words is "five hundred fifty-one million, six hundred seventy-three thousand, three hundred sixty".