2520454213 has 4 divisors (see below), whose sum is σ = 2581928748. Its totient is φ = 2458979680.

The previous prime is 2520454193. The next prime is 2520454219. The reversal of 2520454213 is 3124540252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 593068609 + 1927385604 = 24353^2 + 43902^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520454213 - 2¹³ = 2520446021 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 (2520454219) 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, 30737206 + ... + 30737287.

It is an arithmetic number, because the mean of its divisors is an integer number (645482187).

Almost surely, 2^2520454213 is an apocalyptic number.

It is an amenable number.

2520454213 is a deficient number, since it is larger than the sum of its proper divisors (61474535).

2520454213 is an equidigital number, since it uses as much as digits as its factorization.

2520454213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61474534.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2520454213 is about 50204.1254579741. The cubic root of 2520454213 is about 1360.9001777259.

Adding to 2520454213 its reverse (3124540252), we get a palindrome (5644994465).

The spelling of 2520454213 in words is "two billion, five hundred twenty million, four hundred fifty-four thousand, two hundred thirteen".