55653583 has 4 divisors (see below), whose sum is σ = 58073328. Its totient is φ = 53233840.

The previous prime is 55653557. The next prime is 55653601. The reversal of 55653583 is 38535655.

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 55653583 - 2²¹ = 53556431 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 (55653553) 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, 1209838 + ... + 1209883.

It is an arithmetic number, because the mean of its divisors is an integer number (14518332).

Almost surely, 2^55653583 is an apocalyptic number.

55653583 is a deficient number, since it is larger than the sum of its proper divisors (2419745).

55653583 is a wasteful number, since it uses less digits than its factorization.

55653583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419744.

The product of its digits is 270000, while the sum is 40.

The square root of 55653583 is about 7460.1329076632. The cubic root of 55653583 is about 381.7957091374.

The spelling of 55653583 in words is "fifty-five million, six hundred fifty-three thousand, five hundred eighty-three".