55501589 has 16 divisors (see below), whose sum is σ = 65575104. Its totient is φ = 46310400.

The previous prime is 55501561. The next prime is 55501597. The reversal of 55501589 is 98510555.

It is a cyclic number.

It is not a de Polignac number, because 55501589 - 2⁸ = 55501333 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 (55501559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26594 + ... + 28604.

It is an arithmetic number, because the mean of its divisors is an integer number (4098444).

Almost surely, 2^55501589 is an apocalyptic number.

It is an amenable number.

55501589 is a deficient number, since it is larger than the sum of its proper divisors (10073515).

55501589 is a wasteful number, since it uses less digits than its factorization.

55501589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228.

The product of its (nonzero) digits is 45000, while the sum is 38.

The square root of 55501589 is about 7449.9388588095. The cubic root of 55501589 is about 381.4478215871.

The spelling of 55501589 in words is "fifty-five million, five hundred one thousand, five hundred eighty-nine".