25348220 has 12 divisors (see below), whose sum is σ = 53231304. Its totient is φ = 10139280.

The previous prime is 25348217. The next prime is 25348249. The reversal of 25348220 is 2284352.

It is a self number, because there is not a number n which added to its sum of digits gives 25348220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633686 + ... + 633725.

It is an arithmetic number, because the mean of its divisors is an integer number (4435942).

Almost surely, 2^25348220 is an apocalyptic number.

25348220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25348220 is an abundant number, since it is smaller than the sum of its proper divisors (27883084).

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

25348220 is a wasteful number, since it uses less digits than its factorization.

25348220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267420 (or 1267418 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 25348220 is about 5034.7015800343. The cubic root of 25348220 is about 293.7531208360.

The spelling of 25348220 in words is "twenty-five million, three hundred forty-eight thousand, two hundred twenty".