55902389 has 8 divisors (see below), whose sum is σ = 59429280. Its totient is φ = 52434000.

The previous prime is 55902373. The next prime is 55902391. The reversal of 55902389 is 98320955.

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

It is a cyclic number.

It is not a de Polignac number, because 55902389 - 2⁴ = 55902373 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 (55902359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12647 + ... + 16484.

It is an arithmetic number, because the mean of its divisors is an integer number (7428660).

Almost surely, 2^55902389 is an apocalyptic number.

It is an amenable number.

55902389 is a deficient number, since it is larger than the sum of its proper divisors (3526891).

55902389 is a wasteful number, since it uses less digits than its factorization.

55902389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29251.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 55902389 is about 7476.7900197879. The cubic root of 55902389 is about 382.3638178398.

The spelling of 55902389 in words is "fifty-five million, nine hundred two thousand, three hundred eighty-nine".