52440505 has 16 divisors (see below), whose sum is σ = 68189184. Its totient is φ = 38485440.

The previous prime is 52440503. The next prime is 52440511. The reversal of 52440505 is 50504425.

It is not a de Polignac number, because 52440505 - 2¹ = 52440503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52440505.

It is not an unprimeable number, because it can be changed into a prime (52440503) 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, 8440 + ... + 13270.

It is an arithmetic number, because the mean of its divisors is an integer number (4261824).

Almost surely, 2^52440505 is an apocalyptic number.

It is an amenable number.

52440505 is a deficient number, since it is larger than the sum of its proper divisors (15748679).

52440505 is a wasteful number, since it uses less digits than its factorization.

52440505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 52440505 is about 7241.5816642499. The cubic root of 52440505 is about 374.3021213058.

The spelling of 52440505 in words is "fifty-two million, four hundred forty thousand, five hundred five".