52565345 has 16 divisors (see below), whose sum is σ = 74039808. Its totient is φ = 35069760.

The previous prime is 52565341. The next prime is 52565351. The reversal of 52565345 is 54356525.

It is not a de Polignac number, because 52565345 - 2² = 52565341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52565341) 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, 19001 + ... + 21590.

It is an arithmetic number, because the mean of its divisors is an integer number (4627488).

Almost surely, 2^52565345 is an apocalyptic number.

It is an amenable number.

52565345 is a deficient number, since it is larger than the sum of its proper divisors (21474463).

52565345 is a wasteful number, since it uses less digits than its factorization.

52565345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40640.

The product of its digits is 90000, while the sum is 35.

The square root of 52565345 is about 7250.1962042416. The cubic root of 52565345 is about 374.5989074486.

It can be divided in two parts, 5256 and 5345, that added together give a palindrome (10601).

The spelling of 52565345 in words is "fifty-two million, five hundred sixty-five thousand, three hundred forty-five".