55386469 has 4 divisors (see below), whose sum is σ = 55706796. Its totient is φ = 55066144.

The previous prime is 55386467. The next prime is 55386473. The reversal of 55386469 is 96468355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25553025 + 29833444 = 5055^2 + 5462^2 .

It is a cyclic number.

It is not a de Polignac number, because 55386469 - 2¹ = 55386467 is a prime.

It is a super-2 number, since 2×55386469² = 6135321896575922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55386467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159904 + ... + 160249.

It is an arithmetic number, because the mean of its divisors is an integer number (13926699).

Almost surely, 2^55386469 is an apocalyptic number.

It is an amenable number.

55386469 is a deficient number, since it is larger than the sum of its proper divisors (320327).

55386469 is a wasteful number, since it uses less digits than its factorization.

55386469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320326.

The product of its digits is 777600, while the sum is 46.

The square root of 55386469 is about 7442.2086103522. The cubic root of 55386469 is about 381.1839092101.

It can be divided in two parts, 55386 and 469, that added together give a palindrome (55855).

The spelling of 55386469 in words is "fifty-five million, three hundred eighty-six thousand, four hundred sixty-nine".