25352725 has 12 divisors (see below), whose sum is σ = 31505796. Its totient is φ = 20238080.

The previous prime is 25352653. The next prime is 25352741. The reversal of 25352725 is 52725352.

It can be written as a sum of positive squares in 6 ways, for example, as 6115729 + 19236996 = 2473^2 + 4386^2 .

It is not a de Polignac number, because 25352725 - 2⁷ = 25352597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15549 + ... + 17101.

It is an arithmetic number, because the mean of its divisors is an integer number (2625483).

Almost surely, 2^25352725 is an apocalyptic number.

25352725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25352725 is a deficient number, since it is larger than the sum of its proper divisors (6153071).

25352725 is a wasteful number, since it uses less digits than its factorization.

25352725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2211 counting only the distinct ones).

The product of its digits is 21000, while the sum is 31.

The square root of 25352725 is about 5035.1489550956. The cubic root of 25352725 is about 293.7705221817.

The spelling of 25352725 in words is "twenty-five million, three hundred fifty-two thousand, seven hundred twenty-five".