55161433 has 4 divisors (see below), whose sum is σ = 55195600. Its totient is φ = 55127268.

The previous prime is 55161419. The next prime is 55161437. The reversal of 55161433 is 33416155.

55161433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55161433 - 2⁹ = 55160921 is a prime.

It is a super-2 number, since 2×55161433² = 6085567381226978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55161437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14535 + ... + 17932.

It is an arithmetic number, because the mean of its divisors is an integer number (13798900).

Almost surely, 2^55161433 is an apocalyptic number.

It is an amenable number.

55161433 is a deficient number, since it is larger than the sum of its proper divisors (34167).

55161433 is a wasteful number, since it uses less digits than its factorization.

55161433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34166.

The product of its digits is 5400, while the sum is 28.

The square root of 55161433 is about 7427.0743230427. The cubic root of 55161433 is about 380.6669565925. Note that the first 3 decimals are identical.

Adding to 55161433 its reverse (33416155), we get a palindrome (88577588).

The spelling of 55161433 in words is "fifty-five million, one hundred sixty-one thousand, four hundred thirty-three".