53445307 has 8 divisors (see below), whose sum is σ = 56013984. Its totient is φ = 50897088.

The previous prime is 53445299. The next prime is 53445313. The reversal of 53445307 is 70354435.

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 53445307 - 2³ = 53445299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53445377) 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, 373 + ... + 10345.

It is an arithmetic number, because the mean of its divisors is an integer number (7001748).

Almost surely, 2^53445307 is an apocalyptic number.

53445307 is a deficient number, since it is larger than the sum of its proper divisors (2568677).

53445307 is a wasteful number, since it uses less digits than its factorization.

53445307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10229.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 53445307 is about 7310.6297266378. The cubic root of 53445307 is about 376.6776555474.

The spelling of 53445307 in words is "fifty-three million, four hundred forty-five thousand, three hundred seven".