2524732421 has 4 divisors (see below), whose sum is σ = 2525018700. Its totient is φ = 2524446144.

The previous prime is 2524732403. The next prime is 2524732439. The reversal of 2524732421 is 1242374252.

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

It is an interprime number because it is at equal distance from previous prime (2524732403) and next prime (2524732439).

It can be written as a sum of positive squares in 2 ways, for example, as 728244196 + 1796488225 = 26986^2 + 42385^2 .

It is a cyclic number.

It is not a de Polignac number, because 2524732421 - 2¹⁰ = 2524731397 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 (2524732121) 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, 129476 + ... + 147693.

It is an arithmetic number, because the mean of its divisors is an integer number (631254675).

Almost surely, 2^2524732421 is an apocalyptic number.

It is an amenable number.

2524732421 is a deficient number, since it is larger than the sum of its proper divisors (286279).

2524732421 is an equidigital number, since it uses as much as digits as its factorization.

2524732421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286278.

The product of its digits is 26880, while the sum is 32.

The square root of 2524732421 is about 50246.7155244997. The cubic root of 2524732421 is about 1361.6697378181.

The spelling of 2524732421 in words is "two billion, five hundred twenty-four million, seven hundred thirty-two thousand, four hundred twenty-one".