52440539785 has 4 divisors (see below), whose sum is σ = 62928647748. Its totient is φ = 41952431824.

The previous prime is 52440539783. The next prime is 52440539813. The reversal of 52440539785 is 58793504425.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14198390649 + 38242149136 = 119157^2 + 195556^2 .

It is a cyclic number.

It is not a de Polignac number, because 52440539785 - 2¹ = 52440539783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52440539783) 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, 5244053974 + ... + 5244053983.

It is an arithmetic number, because the mean of its divisors is an integer number (15732161937).

Almost surely, 2^52440539785 is an apocalyptic number.

It is an amenable number.

52440539785 is a deficient number, since it is larger than the sum of its proper divisors (10488107963).

52440539785 is a wasteful number, since it uses less digits than its factorization.

52440539785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10488107962.

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 52440539785 in words is "fifty-two billion, four hundred forty million, five hundred thirty-nine thousand, seven hundred eighty-five".