55137740 has 36 divisors (see below), whose sum is σ = 134696016. Its totient is φ = 18904032.

The previous prime is 55137727. The next prime is 55137751. The reversal of 55137740 is 4773155.

55137740 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 = 55137697 and 55137706.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 27152 + ... + 29111.

It is an arithmetic number, because the mean of its divisors is an integer number (3741556).

Almost surely, 2^55137740 is an apocalyptic number.

It is an amenable number.

55137740 is an abundant number, since it is smaller than the sum of its proper divisors (79558276).

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

55137740 is a wasteful number, since it uses less digits than its factorization.

55137740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56286 (or 56277 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 55137740 is about 7425.4791091215. The cubic root of 55137740 is about 380.6124472894.

The spelling of 55137740 in words is "fifty-five million, one hundred thirty-seven thousand, seven hundred forty".