55587803 has 4 divisors (see below), whose sum is σ = 58004688. Its totient is φ = 53170920.

The previous prime is 55587769. The next prime is 55587811. The reversal of 55587803 is 30878555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30878555 = 5 ⋅6175711.

It is a cyclic number.

It is not a de Polignac number, because 55587803 - 2¹² = 55583707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55587703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1208408 + ... + 1208453.

It is an arithmetic number, because the mean of its divisors is an integer number (14501172).

Almost surely, 2^55587803 is an apocalyptic number.

55587803 is a deficient number, since it is larger than the sum of its proper divisors (2416885).

55587803 is a wasteful number, since it uses less digits than its factorization.

55587803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416884.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 55587803 is about 7455.7228355137. The cubic root of 55587803 is about 381.6452281223.

The spelling of 55587803 in words is "fifty-five million, five hundred eighty-seven thousand, eight hundred three".