2521245734 has 8 divisors (see below), whose sum is σ = 4322135568. Its totient is φ = 1080533880.

The previous prime is 2521245731. The next prime is 2521245739. The reversal of 2521245734 is 4375421252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2521245694 and 2521245703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521245731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90044477 + ... + 90044504.

It is an arithmetic number, because the mean of its divisors is an integer number (540266946).

Almost surely, 2^2521245734 is an apocalyptic number.

2521245734 is a deficient number, since it is larger than the sum of its proper divisors (1800889834).

2521245734 is a wasteful number, since it uses less digits than its factorization.

2521245734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180088990.

The product of its digits is 67200, while the sum is 35.

The square root of 2521245734 is about 50212.0078666448. The cubic root of 2521245734 is about 1361.0426214072.

Adding to 2521245734 its reverse (4375421252), we get a palindrome (6896666986).

The spelling of 2521245734 in words is "two billion, five hundred twenty-one million, two hundred forty-five thousand, seven hundred thirty-four".