55349345 has 8 divisors (see below), whose sum is σ = 66501864. Its totient is φ = 44224384.

The previous prime is 55349323. The next prime is 55349351. The reversal of 55349345 is 54394355.

It can be written as a sum of positive squares in 4 ways, for example, as 17698849 + 37650496 = 4207^2 + 6136^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55349345 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55349299 and 55349308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2174 + ... + 10743.

It is an arithmetic number, because the mean of its divisors is an integer number (8312733).

Almost surely, 2^55349345 is an apocalyptic number.

It is an amenable number.

55349345 is a deficient number, since it is larger than the sum of its proper divisors (11152519).

55349345 is a wasteful number, since it uses less digits than its factorization.

55349345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13779.

The product of its digits is 162000, while the sum is 38.

The square root of 55349345 is about 7439.7140402034. The cubic root of 55349345 is about 381.0987245398.

The spelling of 55349345 in words is "fifty-five million, three hundred forty-nine thousand, three hundred forty-five".