55062140 has 24 divisors (see below), whose sum is σ = 132149472. Its totient is φ = 18878400.

The previous prime is 55062127. The next prime is 55062143. The reversal of 55062140 is 4126055.

55062140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55062140² = 6063678522759200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55062143) 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, 196511 + ... + 196790.

It is an arithmetic number, because the mean of its divisors is an integer number (5506228).

Almost surely, 2^55062140 is an apocalyptic number.

It is an amenable number.

55062140 is an abundant number, since it is smaller than the sum of its proper divisors (77087332).

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

55062140 is a wasteful number, since it uses less digits than its factorization.

55062140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393317 (or 393315 counting only the distinct ones).

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

The square root of 55062140 is about 7420.3867823719. The cubic root of 55062140 is about 380.4384136664.

Adding to 55062140 its reverse (4126055), we get a palindrome (59188195).

The spelling of 55062140 in words is "fifty-five million, sixty-two thousand, one hundred forty".