2545605525 has 24 divisors (see below), whose sum is σ = 4222219840. Its totient is φ = 1353306240.

The previous prime is 2545605509. The next prime is 2545605527. The reversal of 2545605525 is 5255065452.

It is not a de Polignac number, because 2545605525 - 2⁴ = 2545605509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545605527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30745 + ... + 77694.

Almost surely, 2^2545605525 is an apocalyptic number.

2545605525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2545605525 is a deficient number, since it is larger than the sum of its proper divisors (1676614315).

2545605525 is a wasteful number, since it uses less digits than its factorization.

2545605525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108765 (or 108760 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 39.

The square root of 2545605525 is about 50453.9941431796. The cubic root of 2545605525 is about 1365.4119568622.

The spelling of 2545605525 in words is "two billion, five hundred forty-five million, six hundred five thousand, five hundred twenty-five".