25146725 has 12 divisors (see below), whose sum is σ = 31297476. Its totient is φ = 20042880.

The previous prime is 25146721. The next prime is 25146731. The reversal of 25146725 is 52764152.

It can be written as a sum of positive squares in 6 ways, for example, as 56644 + 25090081 = 238^2 + 5009^2 .

It is not a de Polignac number, because 25146725 - 2² = 25146721 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25146691 and 25146700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25146721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5609 + ... + 9041.

It is an arithmetic number, because the mean of its divisors is an integer number (2608123).

Almost surely, 2^25146725 is an apocalyptic number.

25146725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25146725 is a deficient number, since it is larger than the sum of its proper divisors (6150751).

25146725 is a wasteful number, since it uses less digits than its factorization.

25146725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736 (or 3731 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 25146725 is about 5014.6510347182. The cubic root of 25146725 is about 292.9726937010.

The spelling of 25146725 in words is "twenty-five million, one hundred forty-six thousand, seven hundred twenty-five".