5440321537 has 16 divisors (see below), whose sum is σ = 6579228672. Its totient is φ = 4397556240.

The previous prime is 5440321517. The next prime is 5440321567. The reversal of 5440321537 is 7351230445.

5440321537 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-5440321537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5440321507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226533 + ... + 249394.

It is an arithmetic number, because the mean of its divisors is an integer number (411201792).

Almost surely, 2^5440321537 is an apocalyptic number.

It is an amenable number.

5440321537 is a deficient number, since it is larger than the sum of its proper divisors (1138907135).

5440321537 is a wasteful number, since it uses less digits than its factorization.

5440321537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476028.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 5440321537 is about 73758.5353501546. The cubic root of 5440321537 is about 1758.7665187547.

The spelling of 5440321537 in words is "five billion, four hundred forty million, three hundred twenty-one thousand, five hundred thirty-seven".