55289394 has 12 divisors (see below), whose sum is σ = 119793726. Its totient is φ = 18429792.

The previous prime is 55289387. The next prime is 55289459. The reversal of 55289394 is 49398255.

55289394 is a `hidden beast` number, since 552 + 8 + 9 + 3 + 94 = 666.

55289394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 31640625 + 23648769 = 5625^2 + 4863^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1535799 + ... + 1535834.

Almost surely, 2^55289394 is an apocalyptic number.

55289394 is an abundant number, since it is smaller than the sum of its proper divisors (64504332).

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

55289394 is a wasteful number, since it uses less digits than its factorization.

55289394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071641 (or 3071638 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 55289394 is about 7435.6838286737. The cubic root of 55289394 is about 380.9610806133.

The spelling of 55289394 in words is "fifty-five million, two hundred eighty-nine thousand, three hundred ninety-four".