25073280 has 128 divisors (see below), whose sum is σ = 88862400. Its totient is φ = 6681600.

The previous prime is 25073267. The next prime is 25073287. The reversal of 25073280 is 8237052.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25073287) 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, 16555 + ... + 18005.

Almost surely, 2^25073280 is an apocalyptic number.

25073280 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 25073280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44431200).

25073280 is an abundant number, since it is smaller than the sum of its proper divisors (63789120).

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

25073280 is a wasteful number, since it uses less digits than its factorization.

25073280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25073280 is about 5007.3226378974. The cubic root of 25073280 is about 292.6871911574.

The spelling of 25073280 in words is "twenty-five million, seventy-three thousand, two hundred eighty".