551642316 has 24 divisors (see below), whose sum is σ = 1362881520. Its totient is φ = 173064192.

The previous prime is 551642309. The next prime is 551642317. The reversal of 551642316 is 613246155.

It is not an unprimeable number, because it can be changed into a prime (551642317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1351861 + ... + 1352268.

It is an arithmetic number, because the mean of its divisors is an integer number (56786730).

Almost surely, 2^551642316 is an apocalyptic number.

It is an amenable number.

551642316 is an abundant number, since it is smaller than the sum of its proper divisors (811239204).

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

551642316 is a wasteful number, since it uses less digits than its factorization.

551642316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704153 (or 2704151 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 551642316 is about 23487.0669944121. The cubic root of 551642316 is about 820.1359659529.

The spelling of 551642316 in words is "five hundred fifty-one million, six hundred forty-two thousand, three hundred sixteen".