2520043 has 4 divisors (see below), whose sum is σ = 2524768. Its totient is φ = 2515320.

The previous prime is 2520031. The next prime is 2520073. The reversal of 2520043 is 3400252.

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 2520043 - 2¹³ = 2511851 is a prime.

It is a Duffinian number.

2520043 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2519999 and 2520026.

It is not an unprimeable number, because it can be changed into a prime (2520073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443 + ... + 2668.

It is an arithmetic number, because the mean of its divisors is an integer number (631192).

2^2520043 is an apocalyptic number.

2520043 is a deficient number, since it is larger than the sum of its proper divisors (4725).

2520043 is an equidigital number, since it uses as much as digits as its factorization.

2520043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4724.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2520043 is about 1587.4643303079. The cubic root of 2520043 is about 136.0826163251.

Adding to 2520043 its reverse (3400252), we get a palindrome (5920295).

The spelling of 2520043 in words is "two million, five hundred twenty thousand, forty-three".