55203937 has 2 divisors, whose sum is σ = 55203938. Its totient is φ = 55203936.

The previous prime is 55203923. The next prime is 55203943. The reversal of 55203937 is 73930255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40335201 + 14868736 = 6351^2 + 3856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55203937 is a prime.

It is a super-3 number, since 3×55203937³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (55203997) 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, 27601968 + 27601969.

It is an arithmetic number, because the mean of its divisors is an integer number (27601969).

Almost surely, 2^55203937 is an apocalyptic number.

It is an amenable number.

55203937 is a deficient number, since it is larger than the sum of its proper divisors (1).

55203937 is an equidigital number, since it uses as much as digits as its factorization.

55203937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 55203937 is about 7429.9351948722. The cubic root of 55203937 is about 380.7647043212.

The spelling of 55203937 in words is "fifty-five million, two hundred three thousand, nine hundred thirty-seven".