55619323 has 2 divisors, whose sum is σ = 55619324. Its totient is φ = 55619322.

The previous prime is 55619299. The next prime is 55619351. The reversal of 55619323 is 32391655.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55619323 - 2⁹ = 55618811 is a prime.

It is not a weakly prime, because it can be changed into another prime (55619353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27809661 + 27809662.

It is an arithmetic number, because the mean of its divisors is an integer number (27809662).

Almost surely, 2^55619323 is an apocalyptic number.

55619323 is a deficient number, since it is larger than the sum of its proper divisors (1).

55619323 is an equidigital number, since it uses as much as digits as its factorization.

55619323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 34.

The square root of 55619323 is about 7457.8363484324. The cubic root of 55619323 is about 381.7173493669.

It can be divided in two parts, 5561 and 9323, that added together give a square (14884 = 122²).

The spelling of 55619323 in words is "fifty-five million, six hundred nineteen thousand, three hundred twenty-three".