25725460 has 12 divisors (see below), whose sum is σ = 54023508. Its totient is φ = 10290176.

The previous prime is 25725457. The next prime is 25725461. The reversal of 25725460 is 6452752.

It can be written as a sum of positive squares in 2 ways, for example, as 16016004 + 9709456 = 4002^2 + 3116^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25725461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643117 + ... + 643156.

It is an arithmetic number, because the mean of its divisors is an integer number (4501959).

Almost surely, 2^25725460 is an apocalyptic number.

25725460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25725460 is an abundant number, since it is smaller than the sum of its proper divisors (28298048).

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

25725460 is a wasteful number, since it uses less digits than its factorization.

25725460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286282 (or 1286280 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 25725460 is about 5072.0272081289. The cubic root of 25725460 is about 295.2031923872.

The spelling of 25725460 in words is "twenty-five million, seven hundred twenty-five thousand, four hundred sixty".