25771725 has 36 divisors (see below), whose sum is σ = 52757536. Its totient is φ = 11780640.

The previous prime is 25771723. The next prime is 25771741. The reversal of 25771725 is 52717752.

It is not a de Polignac number, because 25771725 - 2¹ = 25771723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25771725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25771723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6607 + ... + 9756.

Almost surely, 2^25771725 is an apocalyptic number.

25771725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25771725 is an abundant number, since it is smaller than the sum of its proper divisors (26985811).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25771725 is a wasteful number, since it uses less digits than its factorization.

25771725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16386 (or 16378 counting only the distinct ones).

The product of its digits is 34300, while the sum is 36.

The square root of 25771725 is about 5076.5859590871. The cubic root of 25771725 is about 295.3800521537.

The spelling of 25771725 in words is "twenty-five million, seven hundred seventy-one thousand, seven hundred twenty-five".