55412311 has 2 divisors, whose sum is σ = 55412312. Its totient is φ = 55412310.

The previous prime is 55412297. The next prime is 55412323. The reversal of 55412311 is 11321455.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55412311 - 2⁹ = 55411799 is a prime.

It is equal to p_3305344 and since 55412311 and 3305344 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55412381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27706155 + 27706156.

It is an arithmetic number, because the mean of its divisors is an integer number (27706156).

Almost surely, 2^55412311 is an apocalyptic number.

55412311 is a deficient number, since it is larger than the sum of its proper divisors (1).

55412311 is an equidigital number, since it uses as much as digits as its factorization.

55412311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 600, while the sum is 22.

The square root of 55412311 is about 7443.9445860377. The cubic root of 55412311 is about 381.2431837534.

Adding to 55412311 its reverse (11321455), we get a palindrome (66733766).

The spelling of 55412311 in words is "fifty-five million, four hundred twelve thousand, three hundred eleven".