2520281023 has 4 divisors (see below), whose sum is σ = 2714148808. Its totient is φ = 2326413240.

The previous prime is 2520281009. The next prime is 2520281033. The reversal of 2520281023 is 3201820252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2520281023 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 (2520281033) 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, 96933873 + ... + 96933898.

It is an arithmetic number, because the mean of its divisors is an integer number (678537202).

Almost surely, 2^2520281023 is an apocalyptic number.

2520281023 is a deficient number, since it is larger than the sum of its proper divisors (193867785).

2520281023 is a wasteful number, since it uses less digits than its factorization.

2520281023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193867784.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2520281023 is about 50202.4005700923. The cubic root of 2520281023 is about 1360.8690061353.

The spelling of 2520281023 in words is "two billion, five hundred twenty million, two hundred eighty-one thousand, twenty-three".