551690000 has 100 divisors (see below), whose sum is σ = 1367824656. Its totient is φ = 215376000.

The previous prime is 551689969. The next prime is 551690003. The reversal of 551690000 is 96155.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×551690000² = 608723712200000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551690003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 429359 + ... + 430641.

Almost surely, 2^551690000 is an apocalyptic number.

551690000 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 551690000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683912328).

551690000 is an abundant number, since it is smaller than the sum of its proper divisors (816134656).

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

551690000 is a wasteful number, since it uses less digits than its factorization.

551690000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 551690000 is about 23488.0820843252. The cubic root of 551690000 is about 820.1595961419.

The spelling of 551690000 in words is "five hundred fifty-one million, six hundred ninety thousand".