55643246 has 4 divisors (see below), whose sum is σ = 83464872. Its totient is φ = 27821622.

The previous prime is 55643243. The next prime is 55643293. The reversal of 55643246 is 64234655.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64234655 = 5 ⋅12846931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55643243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13910810 + ... + 13910813.

It is an arithmetic number, because the mean of its divisors is an integer number (20866218).

Almost surely, 2^55643246 is an apocalyptic number.

55643246 is a deficient number, since it is larger than the sum of its proper divisors (27821626).

55643246 is a wasteful number, since it uses less digits than its factorization.

55643246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27821625.

The product of its digits is 86400, while the sum is 35.

The square root of 55643246 is about 7459.4400594146. The cubic root of 55643246 is about 381.7720696494.

The spelling of 55643246 in words is "fifty-five million, six hundred forty-three thousand, two hundred forty-six".