55511263 has 2 divisors, whose sum is σ = 55511264. Its totient is φ = 55511262.

The previous prime is 55511243. The next prime is 55511303. The reversal of 55511263 is 36211555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55511263 - 2⁵ = 55511231 is a prime.

It is equal to p_3310885 and since 55511263 and 3310885 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 (55511243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27755631 + 27755632.

It is an arithmetic number, because the mean of its divisors is an integer number (27755632).

Almost surely, 2^55511263 is an apocalyptic number.

55511263 is a deficient number, since it is larger than the sum of its proper divisors (1).

55511263 is an equidigital number, since it uses as much as digits as its factorization.

55511263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 28.

The square root of 55511263 is about 7450.5880975934. The cubic root of 55511263 is about 381.4699825853.

The spelling of 55511263 in words is "fifty-five million, five hundred eleven thousand, two hundred sixty-three".