55459591 has 8 divisors (see below), whose sum is σ = 61354368. Its totient is φ = 49707000.

The previous prime is 55459583. The next prime is 55459597. The reversal of 55459591 is 19595455.

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 55459591 - 2³ = 55459583 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 (55459597) 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, 34725 + ... + 36286.

It is an arithmetic number, because the mean of its divisors is an integer number (7669296).

Almost surely, 2^55459591 is an apocalyptic number.

55459591 is a deficient number, since it is larger than the sum of its proper divisors (5894777).

55459591 is a wasteful number, since it uses less digits than its factorization.

55459591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71093.

The product of its digits is 202500, while the sum is 43.

The square root of 55459591 is about 7447.1196445337. The cubic root of 55459591 is about 381.3515835731.

The spelling of 55459591 in words is "fifty-five million, four hundred fifty-nine thousand, five hundred ninety-one".