2520023 has 4 divisors (see below), whose sum is σ = 2749128. Its totient is φ = 2290920.

The previous prime is 2520017. The next prime is 2520031. The reversal of 2520023 is 3200252.

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 2520023 - 2⁸ = 2519767 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 114536 + ... + 114557.

It is an arithmetic number, because the mean of its divisors is an integer number (687282).

2^2520023 is an apocalyptic number.

2520023 is a deficient number, since it is larger than the sum of its proper divisors (229105).

2520023 is a wasteful number, since it uses less digits than its factorization.

2520023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229104.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 2520023 is about 1587.4580309413. The cubic root of 2520023 is about 136.0822563234.

Adding to 2520023 its reverse (3200252), we get a palindrome (5720275).

It can be divided in two parts, 2 and 520023, that added together give a palindrome (520025).

The spelling of 2520023 in words is "two million, five hundred twenty thousand, twenty-three".