55945394 has 4 divisors (see below), whose sum is σ = 83918094. Its totient is φ = 27972696.

The previous prime is 55945381. The next prime is 55945411. The reversal of 55945394 is 49354955.

55945394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51480625 + 4464769 = 7175^2 + 2113^2 .

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 as a sum of consecutive naturals, namely, 13986347 + ... + 13986350.

Almost surely, 2^55945394 is an apocalyptic number.

55945394 is a deficient number, since it is larger than the sum of its proper divisors (27972700).

55945394 is a wasteful number, since it uses less digits than its factorization.

55945394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27972699.

The product of its digits is 486000, while the sum is 44.

The square root of 55945394 is about 7479.6653668463. The cubic root of 55945394 is about 382.4618419223.

The spelling of 55945394 in words is "fifty-five million, nine hundred forty-five thousand, three hundred ninety-four".