551712056 has 32 divisors (see below), whose sum is σ = 1186980480. Its totient is φ = 235500000.

The previous prime is 551712047. The next prime is 551712061. The reversal of 551712056 is 650217155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5570 + ... + 33681.

It is an arithmetic number, because the mean of its divisors is an integer number (37093140).

Almost surely, 2^551712056 is an apocalyptic number.

551712056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

551712056 is an abundant number, since it is smaller than the sum of its proper divisors (635268424).

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

551712056 is a wasteful number, since it uses less digits than its factorization.

551712056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39515 (or 39511 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 32.

The square root of 551712056 is about 23488.5515943406. The cubic root of 551712056 is about 820.1705257092.

The spelling of 551712056 in words is "five hundred fifty-one million, seven hundred twelve thousand, fifty-six".