55252389 has 8 divisors (see below), whose sum is σ = 73713952. Its totient is φ = 36812880.

The previous prime is 55252381. The next prime is 55252391. The reversal of 55252389 is 98325255.

55252389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55252389 - 2³ = 55252381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55252381) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1674 + ... + 10644.

It is an arithmetic number, because the mean of its divisors is an integer number (9214244).

Almost surely, 2^55252389 is an apocalyptic number.

It is an amenable number.

55252389 is a deficient number, since it is larger than the sum of its proper divisors (18461563).

55252389 is a wasteful number, since it uses less digits than its factorization.

55252389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11027.

The product of its digits is 108000, while the sum is 39.

The square root of 55252389 is about 7433.1950734526. The cubic root of 55252389 is about 380.8760696672.

The spelling of 55252389 in words is "fifty-five million, two hundred fifty-two thousand, three hundred eighty-nine".