25213120 has 28 divisors (see below), whose sum is σ = 60039504. Its totient is φ = 10085120.

The previous prime is 25213109. The next prime is 25213127. The reversal of 25213120 is 2131252.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 25213094 and 25213103.

It is not an unprimeable number, because it can be changed into a prime (25213127) 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, 39076 + ... + 39715.

It is an arithmetic number, because the mean of its divisors is an integer number (2144268).

Almost surely, 2^25213120 is an apocalyptic number.

25213120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25213120 is an abundant number, since it is smaller than the sum of its proper divisors (34826384).

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

25213120 is an equidigital number, since it uses as much as digits as its factorization.

25213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78808 (or 78798 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 25213120 is about 5021.2667724390. The cubic root of 25213120 is about 293.2303127667.

Adding to 25213120 its reverse (2131252), we get a palindrome (27344372).

The spelling of 25213120 in words is "twenty-five million, two hundred thirteen thousand, one hundred twenty".