55689001 has 4 divisors (see below), whose sum is σ = 55703952. Its totient is φ = 55674052.

The previous prime is 55688977. The next prime is 55689013. The reversal of 55689001 is 10098655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55689001 - 2¹³ = 55680809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55689041) 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, 3090 + ... + 10996.

It is an arithmetic number, because the mean of its divisors is an integer number (13925988).

Almost surely, 2^55689001 is an apocalyptic number.

It is an amenable number.

55689001 is a deficient number, since it is larger than the sum of its proper divisors (14951).

55689001 is an equidigital number, since it uses as much as digits as its factorization.

55689001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14950.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 55689001 is about 7462.5063484060. The cubic root of 55689001 is about 381.8766836955.

The spelling of 55689001 in words is "fifty-five million, six hundred eighty-nine thousand, one".