25012560 has 80 divisors (see below), whose sum is σ = 78477120. Its totient is φ = 6589440.

The previous prime is 25012543. The next prime is 25012577. The reversal of 25012560 is 6521052.

It is an interprime number because it is at equal distance from previous prime (25012543) and next prime (25012577).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20775 + ... + 21945.

It is an arithmetic number, because the mean of its divisors is an integer number (980964).

Almost surely, 2^25012560 is an apocalyptic number.

25012560 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 25012560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39238560).

25012560 is an abundant number, since it is smaller than the sum of its proper divisors (53464560).

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

25012560 is a wasteful number, since it uses less digits than its factorization.

25012560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 25012560 is about 5001.2558422860. The cubic root of 25012560 is about 292.4507331735.

The spelling of 25012560 in words is "twenty-five million, twelve thousand, five hundred sixty".