2521377245 has 8 divisors (see below), whose sum is σ = 3029453784. Its totient is φ = 2014567744.

The previous prime is 2521377227. The next prime is 2521377301. The reversal of 2521377245 is 5427731252.

2521377245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 88717561 + 2432659684 = 9419^2 + 49322^2 .

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 2521377245 - 2¹² = 2521373149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2521377199 and 2521377208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312374 + ... + 320343.

It is an arithmetic number, because the mean of its divisors is an integer number (378681723).

Almost surely, 2^2521377245 is an apocalyptic number.

It is an amenable number.

2521377245 is a deficient number, since it is larger than the sum of its proper divisors (508076539).

2521377245 is an equidigital number, since it uses as much as digits as its factorization.

2521377245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633519.

The product of its digits is 117600, while the sum is 38.

The square root of 2521377245 is about 50213.3174068394. The cubic root of 2521377245 is about 1361.0662854980.

The spelling of 2521377245 in words is "two billion, five hundred twenty-one million, three hundred seventy-seven thousand, two hundred forty-five".