2545706525 has 12 divisors (see below), whose sum is σ = 3163720500. Its totient is φ = 2032020480.

The previous prime is 2545706519. The next prime is 2545706549. The reversal of 2545706525 is 5256075452.

It can be written as a sum of positive squares in 6 ways, for example, as 97732996 + 2447973529 = 9886^2 + 49477^2 .

It is not a de Polignac number, because 2545706525 - 2⁸ = 2545706269 is a prime.

It is a super-2 number, since 2×2545706525² = 12961243422855151250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102170 + ... + 124619.

It is an arithmetic number, because the mean of its divisors is an integer number (263643375).

Almost surely, 2^2545706525 is an apocalyptic number.

2545706525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2545706525 is a deficient number, since it is larger than the sum of its proper divisors (618013975).

2545706525 is a wasteful number, since it uses less digits than its factorization.

2545706525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227248 (or 227243 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 41.

The square root of 2545706525 is about 50454.9950450894. The cubic root of 2545706525 is about 1365.4300147510.

The spelling of 2545706525 in words is "two billion, five hundred forty-five million, seven hundred six thousand, five hundred twenty-five".