2520019 has 4 divisors (see below), whose sum is σ = 2525760. Its totient is φ = 2514280.

The previous prime is 2520017. The next prime is 2520031. The reversal of 2520019 is 9100252.

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 2520019 - 2¹ = 2520017 is a prime.

It is a super-2 number, since 2×2520019² = 12700991520722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2519978 and 2520005.

It is not an unprimeable number, because it can be changed into a prime (2520017) 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 in 3 ways as a sum of consecutive naturals, for example, 2152 + ... + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (631440).

2^2520019 is an apocalyptic number.

2520019 is a deficient number, since it is larger than the sum of its proper divisors (5741).

2520019 is an equidigital number, since it uses as much as digits as its factorization.

2520019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5740.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2520019 is about 1587.4567710650. The cubic root of 2520019 is about 136.0821843228.

The spelling of 2520019 in words is "two million, five hundred twenty thousand, nineteen".