55609373 has 2 divisors, whose sum is σ = 55609374. Its totient is φ = 55609372.

The previous prime is 55609343. The next prime is 55609439. The reversal of 55609373 is 37390655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29833444 + 25775929 = 5462^2 + 5077^2 .

It is a cyclic number.

It is not a de Polignac number, because 55609373 - 2¹⁴ = 55592989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55609303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27804686 + 27804687.

It is an arithmetic number, because the mean of its divisors is an integer number (27804687).

Almost surely, 2^55609373 is an apocalyptic number.

It is an amenable number.

55609373 is a deficient number, since it is larger than the sum of its proper divisors (1).

55609373 is an equidigital number, since it uses as much as digits as its factorization.

55609373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85050, while the sum is 38.

The square root of 55609373 is about 7457.1692350382. The cubic root of 55609373 is about 381.6945856107.

The spelling of 55609373 in words is "fifty-five million, six hundred nine thousand, three hundred seventy-three".