55431268 has 12 divisors (see below), whose sum is σ = 97172460. Its totient is φ = 27667712.

The previous prime is 55431253. The next prime is 55431281. The reversal of 55431268 is 86213455.

It can be written as a sum of positive squares in 2 ways, for example, as 18852964 + 36578304 = 4342^2 + 6048^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9313 + ... + 14056.

It is an arithmetic number, because the mean of its divisors is an integer number (8097705).

Almost surely, 2^55431268 is an apocalyptic number.

It is an amenable number.

55431268 is a deficient number, since it is larger than the sum of its proper divisors (41741192).

55431268 is a wasteful number, since it uses less digits than its factorization.

55431268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23966 (or 23964 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 55431268 is about 7445.2177939937. The cubic root of 55431268 is about 381.2866542560.

The spelling of 55431268 in words is "fifty-five million, four hundred thirty-one thousand, two hundred sixty-eight".