25454725 has 12 divisors (see below), whose sum is σ = 31674436. Its totient is φ = 20292480.

The previous prime is 25454711. The next prime is 25454731. The reversal of 25454725 is 52745452.

It can be written as a sum of positive squares in 6 ways, for example, as 474721 + 24980004 = 689^2 + 4998^2 .

It is not a de Polignac number, because 25454725 - 2²³ = 17066117 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

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, 6199 + ... + 9451.

Almost surely, 2^25454725 is an apocalyptic number.

25454725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25454725 is a deficient number, since it is larger than the sum of its proper divisors (6219711).

25454725 is a wasteful number, since it uses less digits than its factorization.

25454725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576 (or 3571 counting only the distinct ones).

The product of its digits is 56000, while the sum is 34.

The square root of 25454725 is about 5045.2675845786. The cubic root of 25454725 is about 294.1639644115.

The spelling of 25454725 in words is "twenty-five million, four hundred fifty-four thousand, seven hundred twenty-five".