55408738 has 32 divisors (see below), whose sum is σ = 104030208. Its totient is φ = 21502800.

The previous prime is 55408711. The next prime is 55408739. The reversal of 55408738 is 83780455.

55408738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55408738.

It is not an unprimeable number, because it can be changed into a prime (55408739) 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 15 ways as a sum of consecutive naturals, for example, 50431 + ... + 51517.

It is an arithmetic number, because the mean of its divisors is an integer number (3250944).

Almost surely, 2^55408738 is an apocalyptic number.

55408738 is a deficient number, since it is larger than the sum of its proper divisors (48621470).

55408738 is a wasteful number, since it uses less digits than its factorization.

55408738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 55408738 is about 7443.7045884425. The cubic root of 55408738 is about 381.2349893579.

The spelling of 55408738 in words is "fifty-five million, four hundred eight thousand, seven hundred thirty-eight".