55916351 has 2 divisors, whose sum is σ = 55916352. Its totient is φ = 55916350.

The previous prime is 55916339. The next prime is 55916387. The reversal of 55916351 is 15361955.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55916351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55916551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27958175 + 27958176.

It is an arithmetic number, because the mean of its divisors is an integer number (27958176).

Almost surely, 2^55916351 is an apocalyptic number.

55916351 is a deficient number, since it is larger than the sum of its proper divisors (1).

55916351 is an equidigital number, since it uses as much as digits as its factorization.

55916351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20250, while the sum is 35.

The square root of 55916351 is about 7477.7236509515. The cubic root of 55916351 is about 382.3956478405.

It can be divided in two parts, 55 and 916351, that multiplied together give a palindrome (50399305).

The spelling of 55916351 in words is "fifty-five million, nine hundred sixteen thousand, three hundred fifty-one".