52865945 has 16 divisors (see below), whose sum is σ = 69681600. Its totient is φ = 38184000.

The previous prime is 52865921. The next prime is 52865951. The reversal of 52865945 is 54956825.

It is not a de Polignac number, because 52865945 - 2²⁰ = 51817369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52865896 and 52865905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4970 + ... + 11420.

It is an arithmetic number, because the mean of its divisors is an integer number (4355100).

Almost surely, 2^52865945 is an apocalyptic number.

52865945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52865945 is a deficient number, since it is larger than the sum of its proper divisors (16815655).

52865945 is a wasteful number, since it uses less digits than its factorization.

52865945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6616.

The product of its digits is 432000, while the sum is 44.

The square root of 52865945 is about 7270.8971248395. The cubic root of 52865945 is about 375.3116106214.

The spelling of 52865945 in words is "fifty-two million, eight hundred sixty-five thousand, nine hundred forty-five".