551448630 has 48 divisors (see below), whose sum is σ = 1483213680. Its totient is φ = 141981504.

The previous prime is 551448593. The next prime is 551448631. The reversal of 551448630 is 36844155.

It is a happy number.

551448630 is a `hidden beast` number, since 5 + 5 + 14 + 4 + 8 + 630 = 666.

551448630 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551448631) 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, 103032 + ... + 108251.

It is an arithmetic number, because the mean of its divisors is an integer number (30900285).

Almost surely, 2^551448630 is an apocalyptic number.

551448630 is an abundant number, since it is smaller than the sum of its proper divisors (931765050).

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

551448630 is a wasteful number, since it uses less digits than its factorization.

551448630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211325 (or 211322 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 551448630 is about 23482.9433845078. The cubic root of 551448630 is about 820.0399692990.

The spelling of 551448630 in words is "five hundred fifty-one million, four hundred forty-eight thousand, six hundred thirty".