2421707725 has 6 divisors (see below), whose sum is σ = 3002917610. Its totient is φ = 1937366160.

The previous prime is 2421707713. The next prime is 2421707731. The reversal of 2421707725 is 5277071242.

It can be written as a sum of positive squares in 3 ways, for example, as 387066276 + 2034641449 = 19674^2 + 45107^2 .

It is not a de Polignac number, because 2421707725 - 2⁷ = 2421707597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48434130 + ... + 48434179.

Almost surely, 2^2421707725 is an apocalyptic number.

2421707725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2421707725 is a deficient number, since it is larger than the sum of its proper divisors (581209885).

2421707725 is an equidigital number, since it uses as much as digits as its factorization.

2421707725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96868319 (or 96868314 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 2421707725 is about 49210.8496675276. The cubic root of 2421707725 is about 1342.8904202207.

Adding to 2421707725 its reverse (5277071242), we get a palindrome (7698778967).

The spelling of 2421707725 in words is "two billion, four hundred twenty-one million, seven hundred seven thousand, seven hundred twenty-five".