53306845 has 4 divisors (see below), whose sum is σ = 63968220. Its totient is φ = 42645472.

The previous prime is 53306839. The next prime is 53306857. The reversal of 53306845 is 54860335.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15225604 + 38081241 = 3902^2 + 6171^2 .

It is a cyclic number.

It is not a de Polignac number, because 53306845 - 2¹⁹ = 52782557 is a prime.

It is a super-3 number, since 3×53306845³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53306845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5330680 + ... + 5330689.

It is an arithmetic number, because the mean of its divisors is an integer number (15992055).

Almost surely, 2^53306845 is an apocalyptic number.

It is an amenable number.

53306845 is a deficient number, since it is larger than the sum of its proper divisors (10661375).

53306845 is a wasteful number, since it uses less digits than its factorization.

53306845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10661374.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 53306845 is about 7301.1536759611. The cubic root of 53306845 is about 376.3520850430.

The spelling of 53306845 in words is "fifty-three million, three hundred six thousand, eight hundred forty-five".