551772672 has 240 divisors, whose sum is σ = 1718541792. Its totient is φ = 155975680.

The previous prime is 551772631. The next prime is 551772679. The reversal of 551772672 is 276277155.

It is not an unprimeable number, because it can be changed into a prime (551772679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4882888 + ... + 4883000.

Almost surely, 2^551772672 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 551772672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859270896).

551772672 is an abundant number, since it is smaller than the sum of its proper divisors (1166769120).

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

551772672 is a wasteful number, since it uses less digits than its factorization.

551772672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 146 counting only the distinct ones).

The product of its digits is 205800, while the sum is 42.

The square root of 551772672 is about 23489.8418896339. The cubic root of 551772672 is about 820.2005616887.

The spelling of 551772672 in words is "five hundred fifty-one million, seven hundred seventy-two thousand, six hundred seventy-two".