55350005 has 4 divisors (see below), whose sum is σ = 66420012. Its totient is φ = 44280000.

The previous prime is 55349993. The next prime is 55350013. The reversal of 55350005 is 50005355.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42289009 + 13060996 = 6503^2 + 3614^2 .

It is not a de Polignac number, because 55350005 - 2¹² = 55345909 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 5534996 + ... + 5535005.

It is an arithmetic number, because the mean of its divisors is an integer number (16605003).

Almost surely, 2^55350005 is an apocalyptic number.

It is an amenable number.

55350005 is a deficient number, since it is larger than the sum of its proper divisors (11070007).

55350005 is a wasteful number, since it uses less digits than its factorization.

55350005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070006.

The product of its (nonzero) digits is 1875, while the sum is 23.

The square root of 55350005 is about 7439.7583966148. The cubic root of 55350005 is about 381.1002393072.

The spelling of 55350005 in words is "fifty-five million, three hundred fifty thousand, five".