25061280 has 96 divisors (see below), whose sum is σ = 79833600. Its totient is φ = 6607872.

The previous prime is 25061233. The next prime is 25061287. The reversal of 25061280 is 8216052.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 25061280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25061287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52081 + ... + 52559.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 2^25061280 is an apocalyptic number.

25061280 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 25061280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39916800).

25061280 is an abundant number, since it is smaller than the sum of its proper divisors (54772320).

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

25061280 is a wasteful number, since it uses less digits than its factorization.

25061280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 25061280 is about 5006.1242493570. The cubic root of 25061280 is about 292.6404906225.

The spelling of 25061280 in words is "twenty-five million, sixty-one thousand, two hundred eighty".