551154144 has 96 divisors (see below), whose sum is σ = 1569437856. Its totient is φ = 168673280.

The previous prime is 551154143. The next prime is 551154167. The reversal of 551154144 is 441451155.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551154143) 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, 62794 + ... + 71030.

It is an arithmetic number, because the mean of its divisors is an integer number (16348311).

Almost surely, 2^551154144 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 551154144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784718928).

551154144 is an abundant number, since it is smaller than the sum of its proper divisors (1018283712).

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

551154144 is a wasteful number, since it uses less digits than its factorization.

551154144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8308 (or 8300 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 551154144 is about 23476.6723365983. The cubic root of 551154144 is about 819.8939700302.

The spelling of 551154144 in words is "five hundred fifty-one million, one hundred fifty-four thousand, one hundred forty-four".