2504051321 has 2 divisors, whose sum is σ = 2504051322. Its totient is φ = 2504051320.

The previous prime is 2504051311. The next prime is 2504051351. The reversal of 2504051321 is 1231504052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1384212025 + 1119839296 = 37205^2 + 33464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2504051321 is a prime.

It is not a weakly prime, because it can be changed into another prime (2504051311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252025660 + 1252025661.

It is an arithmetic number, because the mean of its divisors is an integer number (1252025661).

Almost surely, 2^2504051321 is an apocalyptic number.

It is an amenable number.

2504051321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2504051321 is an equidigital number, since it uses as much as digits as its factorization.

2504051321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2504051321 is about 50040.4968100837. The cubic root of 2504051321 is about 1357.9415444395.

Adding to 2504051321 its reverse (1231504052), we get a palindrome (3735555373).

The spelling of 2504051321 in words is "two billion, five hundred four million, fifty-one thousand, three hundred twenty-one".