55350638 has 8 divisors (see below), whose sum is σ = 94886832. Its totient is φ = 23721696.

The previous prime is 55350619. The next prime is 55350641. The reversal of 55350638 is 83605355.

It is a happy number.

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 = 55350598 and 55350607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976795 + ... + 1976822.

It is an arithmetic number, because the mean of its divisors is an integer number (11860854).

Almost surely, 2^55350638 is an apocalyptic number.

55350638 is a deficient number, since it is larger than the sum of its proper divisors (39536194).

55350638 is a wasteful number, since it uses less digits than its factorization.

55350638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953626.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 55350638 is about 7439.8009381972. The cubic root of 55350638 is about 381.1016920956.

The spelling of 55350638 in words is "fifty-five million, three hundred fifty thousand, six hundred thirty-eight".