52540641 has 6 divisors (see below), whose sum is σ = 75892050. Its totient is φ = 35027088.

The previous prime is 52540637. The next prime is 52540661. The reversal of 52540641 is 14604525.

It can be written as a sum of positive squares in only one way, i.e., 52056225 + 484416 = 7215^2 + 696^2 .

It is not a de Polignac number, because 52540641 - 2² = 52540637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52540661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2918916 + ... + 2918933.

It is an arithmetic number, because the mean of its divisors is an integer number (12648675).

Almost surely, 2^52540641 is an apocalyptic number.

It is an amenable number.

52540641 is a deficient number, since it is larger than the sum of its proper divisors (23351409).

52540641 is a wasteful number, since it uses less digits than its factorization.

52540641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5837855 (or 5837852 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 52540641 is about 7248.4923259944. The cubic root of 52540641 is about 374.5402151581.

The spelling of 52540641 in words is "fifty-two million, five hundred forty thousand, six hundred forty-one".