52454681 has 4 divisors (see below), whose sum is σ = 52469172. Its totient is φ = 52440192.

The previous prime is 52454671. The next prime is 52454719. The reversal of 52454681 is 18645425.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 32024281 + 20430400 = 5659^2 + 4520^2 .

It is a cyclic number.

It is not a de Polignac number, because 52454681 - 2¹⁰ = 52453657 is a prime.

It is a super-2 number, since 2×52454681² = 5502987117623522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52454671) 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, 3341 + ... + 10773.

It is an arithmetic number, because the mean of its divisors is an integer number (13117293).

Almost surely, 2^52454681 is an apocalyptic number.

It is an amenable number.

52454681 is a deficient number, since it is larger than the sum of its proper divisors (14491).

52454681 is an equidigital number, since it uses as much as digits as its factorization.

52454681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14490.

The product of its digits is 38400, while the sum is 35.

The square root of 52454681 is about 7242.5603898069. The cubic root of 52454681 is about 374.3358460562.

It can be divided in two parts, 52454 and 681, that added together give a palindrome (53135).

The spelling of 52454681 in words is "fifty-two million, four hundred fifty-four thousand, six hundred eighty-one".