55583903 has 4 divisors (see below), whose sum is σ = 55682160. Its totient is φ = 55485648.

The previous prime is 55583887. The next prime is 55583933. The reversal of 55583903 is 30938555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55583903 - 2⁴ = 55583887 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 (55583933) 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, 48275 + ... + 49412.

It is an arithmetic number, because the mean of its divisors is an integer number (13920540).

Almost surely, 2^55583903 is an apocalyptic number.

55583903 is a deficient number, since it is larger than the sum of its proper divisors (98257).

55583903 is an equidigital number, since it uses as much as digits as its factorization.

55583903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98256.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 55583903 is about 7455.4612868688. The cubic root of 55583903 is about 381.6363025960.

The spelling of 55583903 in words is "fifty-five million, five hundred eighty-three thousand, nine hundred three".