55844651 has 2 divisors, whose sum is σ = 55844652. Its totient is φ = 55844650.

The previous prime is 55844639. The next prime is 55844653. The reversal of 55844651 is 15644855.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55844651 is a prime.

Together with 55844653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55844653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27922325 + 27922326.

It is an arithmetic number, because the mean of its divisors is an integer number (27922326).

Almost surely, 2^55844651 is an apocalyptic number.

55844651 is a deficient number, since it is larger than the sum of its proper divisors (1).

55844651 is an equidigital number, since it uses as much as digits as its factorization.

55844651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96000, while the sum is 38.

The square root of 55844651 is about 7472.9278733305. The cubic root of 55844651 is about 382.2321327873.

The spelling of 55844651 in words is "fifty-five million, eight hundred forty-four thousand, six hundred fifty-one".