55250889 has 8 divisors (see below), whose sum is σ = 73704960. Its totient is φ = 36815376.

The previous prime is 55250869. The next prime is 55250891. The reversal of 55250889 is 98805255.

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

It is not a de Polignac number, because 55250889 - 2⁸ = 55250633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55250889.

It is not an unprimeable number, because it can be changed into a prime (55250809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5439 + ... + 11835.

It is an arithmetic number, because the mean of its divisors is an integer number (9213120).

Almost surely, 2^55250889 is an apocalyptic number.

It is an amenable number.

55250889 is a deficient number, since it is larger than the sum of its proper divisors (18454071).

55250889 is a wasteful number, since it uses less digits than its factorization.

55250889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9279.

The product of its (nonzero) digits is 144000, while the sum is 42.

The square root of 55250889 is about 7433.0941740301. The cubic root of 55250889 is about 380.8726229428.

The spelling of 55250889 in words is "fifty-five million, two hundred fifty thousand, eight hundred eighty-nine".