55472843 has 2 divisors, whose sum is σ = 55472844. Its totient is φ = 55472842.

The previous prime is 55472839. The next prime is 55472861. The reversal of 55472843 is 34827455.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55472843 - 2² = 55472839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55472797 and 55472806.

It is not a weakly prime, because it can be changed into another prime (55472143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27736421 + 27736422.

It is an arithmetic number, because the mean of its divisors is an integer number (27736422).

Almost surely, 2^55472843 is an apocalyptic number.

55472843 is a deficient number, since it is larger than the sum of its proper divisors (1).

55472843 is an equidigital number, since it uses as much as digits as its factorization.

55472843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134400, while the sum is 38.

The square root of 55472843 is about 7448.0093313583. The cubic root of 55472843 is about 381.3819556490.

The spelling of 55472843 in words is "fifty-five million, four hundred seventy-two thousand, eight hundred forty-three".