551518472 has 60 divisors (see below), whose sum is σ = 1141068495. Its totient is φ = 249887088.

The previous prime is 551518469. The next prime is 551518481. The reversal of 551518472 is 274815155.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 275759236 + 275759236 = 16606^2 + 16606^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=16606.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 23979053 + ... + 23979075.

Almost surely, 2^551518472 is an apocalyptic number.

It is an amenable number.

551518472 is an abundant number, since it is smaller than the sum of its proper divisors (589550023).

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

551518472 is an frugal number, since it uses more digits than its factorization.

551518472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 44 counting only the distinct ones).

The product of its digits is 56000, while the sum is 38.

The square root of 551518472 is about 23484.4304167676. The cubic root of 551518472 is about 820.0745877027.

The spelling of 551518472 in words is "five hundred fifty-one million, five hundred eighteen thousand, four hundred seventy-two".