2520405001 has 2 divisors, whose sum is σ = 2520405002. Its totient is φ = 2520405000.

The previous prime is 2520404981. The next prime is 2520405031. The reversal of 2520405001 is 1005040252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1534758976 + 985646025 = 39176^2 + 31395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520405001 - 2⁵ = 2520404969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2520405001.

It is not a weakly prime, because it can be changed into another prime (2520405031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260202500 + 1260202501.

It is an arithmetic number, because the mean of its divisors is an integer number (1260202501).

Almost surely, 2^2520405001 is an apocalyptic number.

It is an amenable number.

2520405001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520405001 is an equidigital number, since it uses as much as digits as its factorization.

2520405001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2520405001 is about 50203.6353364973. The cubic root of 2520405001 is about 1360.8913204526.

Adding to 2520405001 its reverse (1005040252), we get a palindrome (3525445253).

The spelling of 2520405001 in words is "two billion, five hundred twenty million, four hundred five thousand, one".