25750720 has 28 divisors (see below), whose sum is σ = 61319664. Its totient is φ = 10300160.

The previous prime is 25750717. The next prime is 25750729. The reversal of 25750720 is 2705752.

It is not an unprimeable number, because it can be changed into a prime (25750729) 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, 39916 + ... + 40555.

It is an arithmetic number, because the mean of its divisors is an integer number (2189988).

Almost surely, 2^25750720 is an apocalyptic number.

25750720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25750720 is an abundant number, since it is smaller than the sum of its proper divisors (35568944).

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

25750720 is an equidigital number, since it uses as much as digits as its factorization.

25750720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80488 (or 80478 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 25750720 is about 5074.5167257582. The cubic root of 25750720 is about 295.2997814386.

The spelling of 25750720 in words is "twenty-five million, seven hundred fifty thousand, seven hundred twenty".