55540738 has 8 divisors (see below), whose sum is σ = 90884880. Its totient is φ = 25245780.

The previous prime is 55540733. The next prime is 55540741. The reversal of 55540738 is 83704555.

55540738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 55540697 and 55540706.

It is not an unprimeable number, because it can be changed into a prime (55540733) 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, 1262268 + ... + 1262311.

It is an arithmetic number, because the mean of its divisors is an integer number (11360610).

Almost surely, 2^55540738 is an apocalyptic number.

55540738 is a deficient number, since it is larger than the sum of its proper divisors (35344142).

55540738 is a wasteful number, since it uses less digits than its factorization.

55540738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524592.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 55540738 is about 7452.5658668676. The cubic root of 55540738 is about 381.5374874342.

The spelling of 55540738 in words is "fifty-five million, five hundred forty thousand, seven hundred thirty-eight".