551686144 has 39 divisors (see below), whose sum is σ = 1106251887. Its totient is φ = 275091456.

The previous prime is 551686129. The next prime is 551686153. The reversal of 551686144 is 441686155.

The square root of 551686144 is 23488.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551686097 and 551686106.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1503049 + ... + 1503415.

It is an arithmetic number, because the mean of its divisors is an integer number (28365433).

Almost surely, 2^551686144 is an apocalyptic number.

551686144 is the 23488-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551686144

551686144 is an abundant number, since it is smaller than the sum of its proper divisors (554565743).

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

551686144 is an frugal number, since it uses more digits than its factorization.

551686144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 369 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The cubic root of 551686144 is about 820.1576853207.

The spelling of 551686144 in words is "five hundred fifty-one million, six hundred eighty-six thousand, one hundred forty-four".