25200780 has 48 divisors (see below), whose sum is σ = 76978944. Its totient is φ = 6109120.

The previous prime is 25200779. The next prime is 25200781. The reversal of 25200780 is 8700252.

It is an interprime number because it is at equal distance from previous prime (25200779) and next prime (25200781).

It is a self number, because there is not a number n which added to its sum of digits gives 25200780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25200781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18432 + ... + 19751.

It is an arithmetic number, because the mean of its divisors is an integer number (1603728).

Almost surely, 2^25200780 is an apocalyptic number.

25200780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25200780 is an abundant number, since it is smaller than the sum of its proper divisors (51778164).

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

25200780 is a wasteful number, since it uses less digits than its factorization.

25200780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38206 (or 38204 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 25200780 is about 5020.0378484629. The cubic root of 25200780 is about 293.1824666117.

The spelling of 25200780 in words is "twenty-five million, two hundred thousand, seven hundred eighty".