25261960 has 16 divisors (see below), whose sum is σ = 56839500. Its totient is φ = 10104768.

The previous prime is 25261927. The next prime is 25261967. The reversal of 25261960 is 6916252.

It can be written as a sum of positive squares in 2 ways, for example, as 24740676 + 521284 = 4974^2 + 722^2 .

It is not an unprimeable number, because it can be changed into a prime (25261967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315735 + ... + 315814.

Almost surely, 2^25261960 is an apocalyptic number.

25261960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25261960 is an abundant number, since it is smaller than the sum of its proper divisors (31577540).

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

25261960 is a wasteful number, since it uses less digits than its factorization.

25261960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631560 (or 631556 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 25261960 is about 5026.1277341508. The cubic root of 25261960 is about 293.4195281590.

The spelling of 25261960 in words is "twenty-five million, two hundred sixty-one thousand, nine hundred sixty".