551432448 has 360 divisors, whose sum is σ = 1958806080. Its totient is φ = 150958080.

The previous prime is 551432443. The next prime is 551432489. The reversal of 551432448 is 844234155.

It is a happy number.

551432448 is a `hidden beast` number, since 551 + 43 + 24 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551432443) 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, 4209343 + ... + 4209473.

It is an arithmetic number, because the mean of its divisors is an integer number (5441128).

Almost surely, 2^551432448 is an apocalyptic number.

551432448 is a gapful number since it is divisible by the number (58) 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 551432448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979403040).

551432448 is an abundant number, since it is smaller than the sum of its proper divisors (1407373632).

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

551432448 is a wasteful number, since it uses less digits than its factorization.

551432448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 172 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 551432448 is about 23482.5988340303. The cubic root of 551432448 is about 820.0319479918.

The spelling of 551432448 in words is "five hundred fifty-one million, four hundred thirty-two thousand, four hundred forty-eight".