55898423 has 4 divisors (see below), whose sum is σ = 63883920. Its totient is φ = 47912928.

The previous prime is 55898417. The next prime is 55898449. The reversal of 55898423 is 32489855.

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

It is a de Polignac number, because none of the positive numbers 2^k-55898423 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 (55898413) 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, 3992738 + ... + 3992751.

It is an arithmetic number, because the mean of its divisors is an integer number (15970980).

Almost surely, 2^55898423 is an apocalyptic number.

55898423 is a deficient number, since it is larger than the sum of its proper divisors (7985497).

55898423 is an equidigital number, since it uses as much as digits as its factorization.

55898423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7985496.

The product of its digits is 345600, while the sum is 44.

The square root of 55898423 is about 7476.5247943145. The cubic root of 55898423 is about 382.3547753475.

The spelling of 55898423 in words is "fifty-five million, eight hundred ninety-eight thousand, four hundred twenty-three".