55051345 has 8 divisors (see below), whose sum is σ = 66127464. Its totient is φ = 43997184.

The previous prime is 55051343. The next prime is 55051369. The reversal of 55051345 is 54315055.

It can be written as a sum of positive squares in 4 ways, for example, as 54289 + 54997056 = 233^2 + 7416^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55051345 - 2¹ = 55051343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55051343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657 + ... + 10513.

It is an arithmetic number, because the mean of its divisors is an integer number (8265933).

Almost surely, 2^55051345 is an apocalyptic number.

It is an amenable number.

55051345 is a deficient number, since it is larger than the sum of its proper divisors (11076119).

55051345 is a wasteful number, since it uses less digits than its factorization.

55051345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10979.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 55051345 is about 7419.6593587577. The cubic root of 55051345 is about 380.4135502358.

The spelling of 55051345 in words is "fifty-five million, fifty-one thousand, three hundred forty-five".