2315520401 has 2 divisors, whose sum is σ = 2315520402. Its totient is φ = 2315520400.

The previous prime is 2315520391. The next prime is 2315520407. The reversal of 2315520401 is 1040255132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2304096001 + 11424400 = 48001^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315520401 - 2¹⁰ = 2315519377 is a prime.

It is not a weakly prime, because it can be changed into another prime (2315520407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1157760200 + 1157760201.

It is an arithmetic number, because the mean of its divisors is an integer number (1157760201).

Almost surely, 2^2315520401 is an apocalyptic number.

It is an amenable number.

2315520401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315520401 is an equidigital number, since it uses as much as digits as its factorization.

2315520401 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2315520401 is about 48119.8545405117. The cubic root of 2315520401 is about 1322.9686021099.

Adding to 2315520401 its reverse (1040255132), we get a palindrome (3355775533).

The spelling of 2315520401 in words is "two billion, three hundred fifteen million, five hundred twenty thousand, four hundred one".