55642343 has 4 divisors (see below), whose sum is σ = 58915440. Its totient is φ = 52369248.

The previous prime is 55642337. The next prime is 55642373. The reversal of 55642343 is 34324655.

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

It is not a de Polignac number, because 55642343 - 2⁸ = 55642087 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 (55642373) 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, 1636523 + ... + 1636556.

It is an arithmetic number, because the mean of its divisors is an integer number (14728860).

Almost surely, 2^55642343 is an apocalyptic number.

55642343 is a deficient number, since it is larger than the sum of its proper divisors (3273097).

55642343 is a wasteful number, since it uses less digits than its factorization.

55642343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273096.

The product of its digits is 43200, while the sum is 32.

The square root of 55642343 is about 7459.3795318378. The cubic root of 55642343 is about 381.7700044569.

Adding to 55642343 its reverse (34324655), we get a palindrome (89966998).

The spelling of 55642343 in words is "fifty-five million, six hundred forty-two thousand, three hundred forty-three".