5455040321 has 4 divisors (see below), whose sum is σ = 5456765952. Its totient is φ = 5453314692.

The previous prime is 5455040303. The next prime is 5455040347. The reversal of 5455040321 is 1230405545.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1230405545 = 5 ⋅246081109.

It is a cyclic number.

It is not a de Polignac number, because 5455040321 - 2²⁶ = 5387931457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5455090321) 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, 858065 + ... + 864398.

It is an arithmetic number, because the mean of its divisors is an integer number (1364191488).

Almost surely, 2^5455040321 is an apocalyptic number.

It is an amenable number.

5455040321 is a deficient number, since it is larger than the sum of its proper divisors (1725631).

5455040321 is a wasteful number, since it uses less digits than its factorization.

5455040321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725630.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 5455040321 is about 73858.2447733494. The cubic root of 5455040321 is about 1760.3512041256.

Adding to 5455040321 its reverse (1230405545), we get a palindrome (6685445866).

The spelling of 5455040321 in words is "five billion, four hundred fifty-five million, forty thousand, three hundred twenty-one".