25780332 has 24 divisors (see below), whose sum is σ = 62770176. Its totient is φ = 8219728.

The previous prime is 25780331. The next prime is 25780357. The reversal of 25780332 is 23308752.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 25780332.

It is not an unprimeable number, because it can be changed into a prime (25780331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46428 + ... + 46979.

It is an arithmetic number, because the mean of its divisors is an integer number (2615424).

Almost surely, 2^25780332 is an apocalyptic number.

It is an amenable number.

25780332 is an abundant number, since it is smaller than the sum of its proper divisors (36989844).

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

25780332 is a wasteful number, since it uses less digits than its factorization.

25780332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93437 (or 93435 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 25780332 is about 5077.4336037018. The cubic root of 25780332 is about 295.4129312507.

The spelling of 25780332 in words is "twenty-five million, seven hundred eighty thousand, three hundred thirty-two".