5551289964 has 240 divisors, whose sum is σ = 16908017280. Its totient is φ = 1570440960.

The previous prime is 5551289927. The next prime is 5551289987. The reversal of 5551289964 is 4699821555.

5551289964 is a `hidden beast` number, since 5 + 551 + 2 + 89 + 9 + 6 + 4 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 5551289964.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4942707 + ... + 4943829.

It is an arithmetic number, because the mean of its divisors is an integer number (70450072).

Almost surely, 2^5551289964 is an apocalyptic number.

5551289964 is a gapful number since it is divisible by the number (54) 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 5551289964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8454008640).

5551289964 is an abundant number, since it is smaller than the sum of its proper divisors (11356727316).

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

5551289964 is a wasteful number, since it uses less digits than its factorization.

5551289964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1231 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 54.

The square root of 5551289964 is about 74506.9792972444. The cubic root of 5551289964 is about 1770.6442125008.

The spelling of 5551289964 in words is "five billion, five hundred fifty-one million, two hundred eighty-nine thousand, nine hundred sixty-four".