2525575725 has 18 divisors (see below), whose sum is σ = 4523587146. Its totient is φ = 1346973600.

The previous prime is 2525575681. The next prime is 2525575757. The reversal of 2525575725 is 5275755252.

2525575725 is a `hidden beast` number, since 2 + 5 + 2 + 5 + 575 + 72 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 732730761 + 1792844964 = 27069^2 + 42342^2 .

It is not a de Polignac number, because 2525575725 - 2⁸ = 2525575469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5612166 + ... + 5612615.

It is an arithmetic number, because the mean of its divisors is an integer number (251310397).

Almost surely, 2^2525575725 is an apocalyptic number.

2525575725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2525575725 is a deficient number, since it is larger than the sum of its proper divisors (1998011421).

2525575725 is a wasteful number, since it uses less digits than its factorization.

2525575725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11224797 (or 11224789 counting only the distinct ones).

The product of its digits is 1225000, while the sum is 45.

The square root of 2525575725 is about 50255.1064569562. The cubic root of 2525575725 is about 1361.8213279695.

The spelling of 2525575725 in words is "two billion, five hundred twenty-five million, five hundred seventy-five thousand, seven hundred twenty-five".