551898846 has 80 divisors (see below), whose sum is σ = 1366494624. Its totient is φ = 165597696.

The previous prime is 551898821. The next prime is 551898847. The reversal of 551898846 is 648898155.

It is a happy number.

551898846 is a `hidden beast` number, since 5 + 518 + 9 + 88 + 46 = 666.

It is a super-2 number, since 2×551898846² = 609184672432263432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 551898792 and 551898801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551898847) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 58986 + ... + 67698.

Almost surely, 2^551898846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551898846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683247312).

551898846 is an abundant number, since it is smaller than the sum of its proper divisors (814595778).

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

551898846 is a wasteful number, since it uses less digits than its factorization.

551898846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8767 (or 8758 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 54.

The square root of 551898846 is about 23492.5274502340. The cubic root of 551898846 is about 820.2630754157.

The spelling of 551898846 in words is "five hundred fifty-one million, eight hundred ninety-eight thousand, eight hundred forty-six".