25040120 has 64 divisors (see below), whose sum is σ = 66156480. Its totient is φ = 8349696.

The previous prime is 25040107. The next prime is 25040149. The reversal of 25040120 is 2104052.

It is a super-2 number, since 2×25040120² = 1254015219228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 25040095 and 25040104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9152 + ... + 11568.

It is an arithmetic number, because the mean of its divisors is an integer number (1033695).

Almost surely, 2^25040120 is an apocalyptic number.

25040120 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 25040120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33078240).

25040120 is an abundant number, since it is smaller than the sum of its proper divisors (41116360).

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

25040120 is a wasteful number, since it uses less digits than its factorization.

25040120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472 (or 2468 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 25040120 is about 5004.0103916759. The cubic root of 25040120 is about 292.5581056795.

Adding to 25040120 its reverse (2104052), we get a palindrome (27144172).

The spelling of 25040120 in words is "twenty-five million, forty thousand, one hundred twenty".