55455469 has 2 divisors, whose sum is σ = 55455470. Its totient is φ = 55455468.

The previous prime is 55455467. The next prime is 55455481. The reversal of 55455469 is 96455455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51652969 + 3802500 = 7187^2 + 1950^2 .

It is a cyclic number.

It is not a de Polignac number, because 55455469 - 2¹ = 55455467 is a prime.

It is a super-2 number, since 2×55455469² = 6150618084019922, which contains 22 as substring.

Together with 55455467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55455467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27727734 + 27727735.

It is an arithmetic number, because the mean of its divisors is an integer number (27727735).

Almost surely, 2^55455469 is an apocalyptic number.

It is an amenable number.

55455469 is a deficient number, since it is larger than the sum of its proper divisors (1).

55455469 is an equidigital number, since it uses as much as digits as its factorization.

55455469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540000, while the sum is 43.

The square root of 55455469 is about 7446.8428880969. The cubic root of 55455469 is about 381.3421354317.

The spelling of 55455469 in words is "fifty-five million, four hundred fifty-five thousand, four hundred sixty-nine".