55553269 has 2 divisors, whose sum is σ = 55553270. Its totient is φ = 55553268.

The previous prime is 55553261. The next prime is 55553327. The reversal of 55553269 is 96235555.

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., 47430769 + 8122500 = 6887^2 + 2850^2 .

It is a cyclic number.

It is not a de Polignac number, because 55553269 - 2³ = 55553261 is a prime.

It is a super-2 number, since 2×55553269² = 6172331393172722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55553261) 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, 27776634 + 27776635.

It is an arithmetic number, because the mean of its divisors is an integer number (27776635).

Almost surely, 2^55553269 is an apocalyptic number.

It is an amenable number.

55553269 is a deficient number, since it is larger than the sum of its proper divisors (1).

55553269 is an equidigital number, since it uses as much as digits as its factorization.

55553269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 202500, while the sum is 40.

The square root of 55553269 is about 7453.4065366113. The cubic root of 55553269 is about 381.5661792072.

It can be divided in two parts, 555 and 53269, that added together give a square (53824 = 232²).

The spelling of 55553269 in words is "fifty-five million, five hundred fifty-three thousand, two hundred sixty-nine".