2520534421 has 8 divisors (see below), whose sum is σ = 2575865600. Its totient is φ = 2465789040.

The previous prime is 2520534413. The next prime is 2520534481. The reversal of 2520534421 is 1244350252.

2520534421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2520534421 - 2³ = 2520534413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2520534421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520534481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137745 + ... + 154966.

It is an arithmetic number, because the mean of its divisors is an integer number (321983200).

Almost surely, 2^2520534421 is an apocalyptic number.

It is an amenable number.

2520534421 is a deficient number, since it is larger than the sum of its proper divisors (55331179).

2520534421 is a wasteful number, since it uses less digits than its factorization.

2520534421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292899.

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

The square root of 2520534421 is about 50204.9242704339. The cubic root of 2520534421 is about 1360.9146134736.

Adding to 2520534421 its reverse (1244350252), we get a palindrome (3764884673).

The spelling of 2520534421 in words is "two billion, five hundred twenty million, five hundred thirty-four thousand, four hundred twenty-one".