5240320451 has 4 divisors (see below), whose sum is σ = 5241772872. Its totient is φ = 5238868032.

The previous prime is 5240320439. The next prime is 5240320489. The reversal of 5240320451 is 1540230425.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5240320451 - 2²⁶ = 5173211587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5240320451.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720785 + ... + 728018.

It is an arithmetic number, because the mean of its divisors is an integer number (1310443218).

Almost surely, 2^5240320451 is an apocalyptic number.

5240320451 is a deficient number, since it is larger than the sum of its proper divisors (1452421).

5240320451 is a wasteful number, since it uses less digits than its factorization.

5240320451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452420.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 5240320451 is about 72390.0576805959. The cubic root of 5240320451 is about 1736.9445265815.

Adding to 5240320451 its reverse (1540230425), we get a palindrome (6780550876).

The spelling of 5240320451 in words is "five billion, two hundred forty million, three hundred twenty thousand, four hundred fifty-one".