25059780 has 120 divisors (see below), whose sum is σ = 81312000. Its totient is φ = 6454080.

The previous prime is 25059763. The next prime is 25059781. The reversal of 25059780 is 8795052.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25059781) 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 39 ways as a sum of consecutive naturals, for example, 49971 + ... + 50469.

It is an arithmetic number, because the mean of its divisors is an integer number (677600).

Almost surely, 2^25059780 is an apocalyptic number.

25059780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25059780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40656000).

25059780 is an abundant number, since it is smaller than the sum of its proper divisors (56252220).

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

25059780 is a wasteful number, since it uses less digits than its factorization.

25059780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 25059780 is about 5005.9744306179. The cubic root of 25059780 is about 292.6346520076.

The spelling of 25059780 in words is "twenty-five million, fifty-nine thousand, seven hundred eighty".