55603523 has 2 divisors, whose sum is σ = 55603524. Its totient is φ = 55603522.

The previous prime is 55603507. The next prime is 55603543. The reversal of 55603523 is 32530655.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55603523 - 2⁴ = 55603507 is a prime.

It is not a weakly prime, because it can be changed into another prime (55603543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27801761 + 27801762.

It is an arithmetic number, because the mean of its divisors is an integer number (27801762).

Almost surely, 2^55603523 is an apocalyptic number.

55603523 is a deficient number, since it is larger than the sum of its proper divisors (1).

55603523 is an equidigital number, since it uses as much as digits as its factorization.

55603523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 55603523 is about 7456.7769847301. The cubic root of 55603523 is about 381.6812006271.

The spelling of 55603523 in words is "fifty-five million, six hundred three thousand, five hundred twenty-three".