2524720643 has 16 divisors (see below), whose sum is σ = 2749886496. Its totient is φ = 2309015040.

The previous prime is 2524720637. The next prime is 2524720661. The reversal of 2524720643 is 3460274252.

It is a cyclic number.

It is not a de Polignac number, because 2524720643 - 2¹⁰ = 2524719619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2524720343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71405 + ... + 100737.

It is an arithmetic number, because the mean of its divisors is an integer number (171867906).

Almost surely, 2^2524720643 is an apocalyptic number.

2524720643 is a deficient number, since it is larger than the sum of its proper divisors (225165853).

2524720643 is a wasteful number, since it uses less digits than its factorization.

2524720643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29494.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 2524720643 is about 50246.5983226726. The cubic root of 2524720643 is about 1361.6676203962.

Adding to 2524720643 its reverse (3460274252), we get a palindrome (5984994895).

The spelling of 2524720643 in words is "two billion, five hundred twenty-four million, seven hundred twenty thousand, six hundred forty-three".