2481520725 has 24 divisors (see below), whose sum is σ = 4558646720. Its totient is φ = 1323477360.

The previous prime is 2481520721. The next prime is 2481520733. The reversal of 2481520725 is 5270251842.

It is a happy number.

It is not a de Polignac number, because 2481520725 - 2² = 2481520721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2481520725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2481520721) 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 23 ways as a sum of consecutive naturals, for example, 1837489 + ... + 1838838.

Almost surely, 2^2481520725 is an apocalyptic number.

2481520725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2481520725 is a deficient number, since it is larger than the sum of its proper divisors (2077125995).

2481520725 is a wasteful number, since it uses less digits than its factorization.

2481520725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676346 (or 3676335 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 2481520725 is about 49814.8644984607. The cubic root of 2481520725 is about 1353.8565036181.

The spelling of 2481520725 in words is "two billion, four hundred eighty-one million, five hundred twenty thousand, seven hundred twenty-five".