25201374220 has 72 divisors (see below), whose sum is σ = 58229759952. Its totient is φ = 9154949760.

The previous prime is 25201374217. The next prime is 25201374227. The reversal of 25201374220 is 2247310252.

It is not an unprimeable number, because it can be changed into a prime (25201374227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2698479 + ... + 2707801.

It is an arithmetic number, because the mean of its divisors is an integer number (808746666).

Almost surely, 2^25201374220 is an apocalyptic number.

25201374220 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 25201374220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29114879976).

25201374220 is an abundant number, since it is smaller than the sum of its proper divisors (33028385732).

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

25201374220 is a wasteful number, since it uses less digits than its factorization.

25201374220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10471 (or 10458 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 25201374220 its reverse (2247310252), we get a palindrome (27448684472).

The spelling of 25201374220 in words is "twenty-five billion, two hundred one million, three hundred seventy-four thousand, two hundred twenty".