55431016 has 32 divisors (see below), whose sum is σ = 112742280. Its totient is φ = 25446400.

The previous prime is 55431011. The next prime is 55431041. The reversal of 55431016 is 61013455.

It can be written as a sum of positive squares in 4 ways, for example, as 20738916 + 34692100 = 4554^2 + 5890^2 .

It is not an unprimeable number, because it can be changed into a prime (55431011) 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, 606 + ... + 10546.

Almost surely, 2^55431016 is an apocalyptic number.

It is an amenable number.

55431016 is an abundant number, since it is smaller than the sum of its proper divisors (57311264).

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

55431016 is a wasteful number, since it uses less digits than its factorization.

55431016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005 (or 10001 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 55431016 is about 7445.2008703594. The cubic root of 55431016 is about 381.2860764571.

The spelling of 55431016 in words is "fifty-five million, four hundred thirty-one thousand, sixteen".