55162040 has 32 divisors (see below), whose sum is σ = 124422480. Its totient is φ = 22010112.

The previous prime is 55162039. The next prime is 55162043. The reversal of 55162040 is 4026155.

55162040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55161997 and 55162015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55162043) 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 7 ways as a sum of consecutive naturals, for example, 17204 + ... + 20156.

Almost surely, 2^55162040 is an apocalyptic number.

It is an amenable number.

55162040 is an abundant number, since it is smaller than the sum of its proper divisors (69260440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55162040 is a wasteful number, since it uses less digits than its factorization.

55162040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431 (or 3427 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 55162040 is about 7427.1151869350. The cubic root of 55162040 is about 380.6683528820.

Adding to 55162040 its reverse (4026155), we get a palindrome (59188195).

The spelling of 55162040 in words is "fifty-five million, one hundred sixty-two thousand, forty".