25603072 has 44 divisors (see below), whose sum is σ = 55858536. Its totient is φ = 11632640.

The previous prime is 25603049. The next prime is 25603079. The reversal of 25603072 is 27030652.

It is a tau number, because it is divible by the number of its divisors (44).

It is not an unprimeable number, because it can be changed into a prime (25603079) 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, 10128 + ... + 12400.

Almost surely, 2^25603072 is an apocalyptic number.

25603072 is a gapful number since it is divisible by the number (22) 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 25603072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27929268).

25603072 is an abundant number, since it is smaller than the sum of its proper divisors (30255464).

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

25603072 is a wasteful number, since it uses less digits than its factorization.

25603072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 25603072 is about 5059.9478258180. The cubic root of 25603072 is about 294.7343083205.

The spelling of 25603072 in words is "twenty-five million, six hundred three thousand, seventy-two".