55398345 has 16 divisors (see below), whose sum is σ = 90141120. Its totient is φ = 29044544.

The previous prime is 55398341. The next prime is 55398353. The reversal of 55398345 is 54389355.

It is a cyclic number.

It is not a de Polignac number, because 55398345 - 2² = 55398341 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55398297 and 55398306.

It is not an unprimeable number, because it can be changed into a prime (55398341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30414 + ... + 32183.

It is an arithmetic number, because the mean of its divisors is an integer number (5633820).

Almost surely, 2^55398345 is an apocalyptic number.

It is an amenable number.

55398345 is a deficient number, since it is larger than the sum of its proper divisors (34742775).

55398345 is a wasteful number, since it uses less digits than its factorization.

55398345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62664.

The product of its digits is 324000, while the sum is 42.

The square root of 55398345 is about 7443.0064490097. The cubic root of 55398345 is about 381.2111518241.

The spelling of 55398345 in words is "fifty-five million, three hundred ninety-eight thousand, three hundred forty-five".