2503661525 has 12 divisors (see below), whose sum is σ = 3204687744. Its totient is φ = 1938318000.

The previous prime is 2503661513. The next prime is 2503661533. The reversal of 2503661525 is 5251663052.

It is not a de Polignac number, because 2503661525 - 2¹⁶ = 2503595989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1614491 + ... + 1616040.

It is an arithmetic number, because the mean of its divisors is an integer number (267057312).

Almost surely, 2^2503661525 is an apocalyptic number.

2503661525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2503661525 is a deficient number, since it is larger than the sum of its proper divisors (701026219).

2503661525 is a wasteful number, since it uses less digits than its factorization.

2503661525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230572 (or 3230567 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 2503661525 is about 50036.6018530435. The cubic root of 2503661525 is about 1357.8710789441.

The spelling of 2503661525 in words is "two billion, five hundred three million, six hundred sixty-one thousand, five hundred twenty-five".