25299120 has 240 divisors, whose sum is σ = 100493568. Its totient is φ = 5114880.

The previous prime is 25299101. The next prime is 25299121. The reversal of 25299120 is 2199252.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25299121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 683742 + ... + 683778.

Almost surely, 2^25299120 is an apocalyptic number.

25299120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

25299120 is the 4107-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25299120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50246784).

25299120 is an abundant number, since it is smaller than the sum of its proper divisors (75194448).

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

25299120 is a wasteful number, since it uses less digits than its factorization.

25299120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 25299120 is about 5029.8230585181. The cubic root of 25299120 is about 293.5633297186.

The spelling of 25299120 in words is "twenty-five million, two hundred ninety-nine thousand, one hundred twenty".