55599373 has 2 divisors, whose sum is σ = 55599374. Its totient is φ = 55599372.

The previous prime is 55599361. The next prime is 55599437. The reversal of 55599373 is 37399555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30228004 + 25371369 = 5498^2 + 5037^2 .

It is a cyclic number.

It is not a de Polignac number, because 55599373 - 2²¹ = 53502221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55599343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27799686 + 27799687.

It is an arithmetic number, because the mean of its divisors is an integer number (27799687).

Almost surely, 2^55599373 is an apocalyptic number.

It is an amenable number.

55599373 is a deficient number, since it is larger than the sum of its proper divisors (1).

55599373 is an equidigital number, since it uses as much as digits as its factorization.

55599373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 637875, while the sum is 46.

The square root of 55599373 is about 7456.4987091798. The cubic root of 55599373 is about 381.6717047277.

The spelling of 55599373 in words is "fifty-five million, five hundred ninety-nine thousand, three hundred seventy-three".