5440440253 has 4 divisors (see below), whose sum is σ = 5443295040. Its totient is φ = 5437585468.

The previous prime is 5440440233. The next prime is 5440440277. The reversal of 5440440253 is 3520440445.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5440440253 - 2¹⁷ = 5440309181 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 (5440440233) 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, 1424533 + ... + 1428346.

It is an arithmetic number, because the mean of its divisors is an integer number (1360823760).

Almost surely, 2^5440440253 is an apocalyptic number.

It is an amenable number.

5440440253 is a deficient number, since it is larger than the sum of its proper divisors (2854787).

5440440253 is a wasteful number, since it uses less digits than its factorization.

5440440253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854786.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 5440440253 is about 73759.3401068638. The cubic root of 5440440253 is about 1758.7793116387.

Adding to 5440440253 its reverse (3520440445), we get a palindrome (8960880698).

The spelling of 5440440253 in words is "five billion, four hundred forty million, four hundred forty thousand, two hundred fifty-three".