2519801 has 2 divisors, whose sum is σ = 2519802. Its totient is φ = 2519800.

The previous prime is 2519767. The next prime is 2519813. The reversal of 2519801 is 1089152.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1795600 + 724201 = 1340^2 + 851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2519801 is a prime.

It is equal to p₁₈₄₄₀₉ and since 2519801 and 184409 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2519851) 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, 1259900 + 1259901.

It is an arithmetic number, because the mean of its divisors is an integer number (1259901).

2^2519801 is an apocalyptic number.

It is an amenable number.

2519801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2519801 is an equidigital number, since it uses as much as digits as its factorization.

2519801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 2519801 is about 1587.3881062928. The cubic root of 2519801 is about 136.0782601763.

The spelling of 2519801 in words is "two million, five hundred nineteen thousand, eight hundred one".