55651333 has 2 divisors, whose sum is σ = 55651334. Its totient is φ = 55651332.

The previous prime is 55651307. The next prime is 55651397. The reversal of 55651333 is 33315655.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51165409 + 4485924 = 7153^2 + 2118^2 .

It is a cyclic number.

It is not a de Polignac number, because 55651333 - 2⁵ = 55651301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55651295 and 55651304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55651033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27825666 + 27825667.

It is an arithmetic number, because the mean of its divisors is an integer number (27825667).

Almost surely, 2^55651333 is an apocalyptic number.

It is an amenable number.

55651333 is a deficient number, since it is larger than the sum of its proper divisors (1).

55651333 is an equidigital number, since it uses as much as digits as its factorization.

55651333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20250, while the sum is 31.

The square root of 55651333 is about 7459.9821045362. The cubic root of 55651333 is about 381.7905639046.

Adding to 55651333 its reverse (33315655), we get a palindrome (88966988).

The spelling of 55651333 in words is "fifty-five million, six hundred fifty-one thousand, three hundred thirty-three".