53590641509 has 4 divisors (see below), whose sum is σ = 56743032204. Its totient is φ = 50438250816.

The previous prime is 53590641499. The next prime is 53590641523. The reversal of 53590641509 is 90514609535.

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 49608652900 + 3981988609 = 222730^2 + 63103^2 .

It is a cyclic number.

It is not a de Polignac number, because 53590641509 - 2¹² = 53590637413 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 (53590646509) 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, 1576195322 + ... + 1576195355.

It is an arithmetic number, because the mean of its divisors is an integer number (14185758051).

Almost surely, 2^53590641509 is an apocalyptic number.

It is an amenable number.

53590641509 is a deficient number, since it is larger than the sum of its proper divisors (3152390695).

53590641509 is a wasteful number, since it uses less digits than its factorization.

53590641509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152390694.

The product of its (nonzero) digits is 729000, while the sum is 47.

The spelling of 53590641509 in words is "fifty-three billion, five hundred ninety million, six hundred forty-one thousand, five hundred nine".