55001089 has 8 divisors (see below), whose sum is σ = 64616832. Its totient is φ = 46154640.

The previous prime is 55001083. The next prime is 55001101. The reversal of 55001089 is 98010055.

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 55001089 - 2⁵ = 55001057 is a prime.

It is a Duffinian number.

55001089 is a modest number, since divided by 1089 gives 55 as remainder.

It is not an unprimeable number, because it can be changed into a prime (55001083) 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, 192169 + ... + 192454.

It is an arithmetic number, because the mean of its divisors is an integer number (8077104).

It is a Proth number, since it is equal to 3357 ⋅ 2¹⁴ + 1 and 3357 < 2¹⁴.

Almost surely, 2^55001089 is an apocalyptic number.

It is an amenable number.

55001089 is a deficient number, since it is larger than the sum of its proper divisors (9615743).

55001089 is a wasteful number, since it uses less digits than its factorization.

55001089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384647.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 55001089 is about 7416.2719070973. The cubic root of 55001089 is about 380.2977560082.

The spelling of 55001089 in words is "fifty-five million, one thousand, eighty-nine".