52440463 has 4 divisors (see below), whose sum is σ = 52689208. Its totient is φ = 52191720.

The previous prime is 52440413. The next prime is 52440467. The reversal of 52440463 is 36404425.

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

It is a cyclic number.

It is not a de Polignac number, because 52440463 - 2¹³ = 52432271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52440467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124056 + ... + 124477.

It is an arithmetic number, because the mean of its divisors is an integer number (13172302).

Almost surely, 2^52440463 is an apocalyptic number.

52440463 is a deficient number, since it is larger than the sum of its proper divisors (248745).

52440463 is a wasteful number, since it uses less digits than its factorization.

52440463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248744.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 52440463 is about 7241.5787643303. The cubic root of 52440463 is about 374.3020213786.

Adding to 52440463 its reverse (36404425), we get a palindrome (88844888).

The spelling of 52440463 in words is "fifty-two million, four hundred forty thousand, four hundred sixty-three".