2520605430 has 96 divisors (see below), whose sum is σ = 7499179584. Its totient is φ = 575417088.

The previous prime is 2520605411. The next prime is 2520605491. The reversal of 2520605430 is 345060252.

2520605430 is a `hidden beast` number, since 2 + 5 + 20 + 605 + 4 + 30 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2520605394 and 2520605403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 626104 + ... + 630116.

It is an arithmetic number, because the mean of its divisors is an integer number (78116454).

Almost surely, 2^2520605430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2520605430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749589792).

2520605430 is an abundant number, since it is smaller than the sum of its proper divisors (4978574154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2520605430 is a wasteful number, since it uses less digits than its factorization.

2520605430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030 (or 5027 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2520605430 is about 50205.6314570388. The cubic root of 2520605430 is about 1360.9273933398.

Adding to 2520605430 its reverse (345060252), we get a palindrome (2865665682).

It can be divided in two parts, 2520 and 605430, that multiplied together give a square (1525683600 = 39060²).

The spelling of 2520605430 in words is "two billion, five hundred twenty million, six hundred five thousand, four hundred thirty".