551622760 has 64 divisors (see below), whose sum is σ = 1344747600. Its totient is φ = 203643648.

The previous prime is 551622739. The next prime is 551622761. The reversal of 551622760 is 67226155.

It can be written as a sum of positive squares in 8 ways, for example, as 1532644 + 550090116 = 1238^2 + 23454^2 .

It is not an unprimeable number, because it can be changed into a prime (551622761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84742 + ... + 91018.

Almost surely, 2^551622760 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 551622760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672373800).

551622760 is an abundant number, since it is smaller than the sum of its proper divisors (793124840).

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

551622760 is a wasteful number, since it uses less digits than its factorization.

551622760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327 (or 6297 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 551622760 is about 23486.6506765013. The cubic root of 551622760 is about 820.1262744263.

The spelling of 551622760 in words is "five hundred fifty-one million, six hundred twenty-two thousand, seven hundred sixty".