551634460 has 96 divisors (see below), whose sum is σ = 1303948800. Its totient is φ = 194641920.

The previous prime is 551634451. The next prime is 551634463. The reversal of 551634460 is 64436155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551634463) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 716956 + ... + 717724.

It is an arithmetic number, because the mean of its divisors is an integer number (13582800).

Almost surely, 2^551634460 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 551634460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651974400).

551634460 is an abundant number, since it is smaller than the sum of its proper divisors (752314340).

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

551634460 is a wasteful number, since it uses less digits than its factorization.

551634460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 551634460 is about 23486.8997528409. The cubic root of 551634460 is about 820.1320727183.

The spelling of 551634460 in words is "five hundred fifty-one million, six hundred thirty-four thousand, four hundred sixty".