55619743 has 2 divisors, whose sum is σ = 55619744. Its totient is φ = 55619742.

The previous prime is 55619741. The next prime is 55619747. The reversal of 55619743 is 34791655.

55619743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55619743 - 2¹ = 55619741 is a prime.

It is a super-2 number, since 2×55619743² = 6187111622772098, which contains 22 as substring.

Together with 55619741, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 55619696 and 55619705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55619741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27809871 + 27809872.

It is an arithmetic number, because the mean of its divisors is an integer number (27809872).

Almost surely, 2^55619743 is an apocalyptic number.

55619743 is a deficient number, since it is larger than the sum of its proper divisors (1).

55619743 is an equidigital number, since it uses as much as digits as its factorization.

55619743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The square root of 55619743 is about 7457.8645066802. The cubic root of 55619743 is about 381.7183101894.

The spelling of 55619743 in words is "fifty-five million, six hundred nineteen thousand, seven hundred forty-three".