25678760 has 16 divisors (see below), whose sum is σ = 57777300. Its totient is φ = 10271488.

The previous prime is 25678739. The next prime is 25678769. The reversal of 25678760 is 6787652.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25180324 + 498436 = 5018^2 + 706^2 .

It is not an unprimeable number, because it can be changed into a prime (25678769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320945 + ... + 321024.

Almost surely, 2^25678760 is an apocalyptic number.

25678760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25678760 is an abundant number, since it is smaller than the sum of its proper divisors (32098540).

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

25678760 is a wasteful number, since it uses less digits than its factorization.

25678760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641980 (or 641976 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 25678760 is about 5067.4214350101. The cubic root of 25678760 is about 295.0244545465.

The spelling of 25678760 in words is "twenty-five million, six hundred seventy-eight thousand, seven hundred sixty".