55490345 has 8 divisors (see below), whose sum is σ = 67178376. Its totient is φ = 43998976.

The previous prime is 55490321. The next prime is 55490353. The reversal of 55490345 is 54309455.

It can be written as a sum of positive squares in 4 ways, for example, as 300304 + 55190041 = 548^2 + 7429^2 .

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-55490345 is a prime.

It is a Duffinian number.

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, 48542 + ... + 49671.

It is an arithmetic number, because the mean of its divisors is an integer number (8397297).

Almost surely, 2^55490345 is an apocalyptic number.

It is an amenable number.

55490345 is a deficient number, since it is larger than the sum of its proper divisors (11688031).

55490345 is a wasteful number, since it uses less digits than its factorization.

55490345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98331.

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

The square root of 55490345 is about 7449.1841835197. The cubic root of 55490345 is about 381.4220608293.

The spelling of 55490345 in words is "fifty-five million, four hundred ninety thousand, three hundred forty-five".