2525280525 has 36 divisors (see below), whose sum is σ = 4645318132. Its totient is φ = 1310411520.

The previous prime is 2525280523. The next prime is 2525280533. The reversal of 2525280525 is 5250825252.

2525280525 is a `hidden beast` number, since 2 + 5 + 2 + 52 + 80 + 525 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 380016036 + 2145264489 = 19494^2 + 46317^2 .

It is not a de Polignac number, because 2525280525 - 2¹ = 2525280523 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2525280525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525280523) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 143344 + ... + 159993.

Almost surely, 2^2525280525 is an apocalyptic number.

2525280525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2525280525 is a deficient number, since it is larger than the sum of its proper divisors (2120037607).

2525280525 is a wasteful number, since it uses less digits than its factorization.

2525280525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303390 (or 303382 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The square root of 2525280525 is about 50252.1693561581. The cubic root of 2525280525 is about 1361.7682674183.

The spelling of 2525280525 in words is "two billion, five hundred twenty-five million, two hundred eighty thousand, five hundred twenty-five".