25413051220 has 48 divisors (see below), whose sum is σ = 54285251328. Its totient is φ = 9991640960.

The previous prime is 25413051203. The next prime is 25413051253. The reversal of 25413051220 is 2215031452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288165 + ... + 365875.

It is an arithmetic number, because the mean of its divisors is an integer number (1130942736).

Almost surely, 2^25413051220 is an apocalyptic number.

25413051220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25413051220 is an abundant number, since it is smaller than the sum of its proper divisors (28872200108).

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

25413051220 is a wasteful number, since it uses less digits than its factorization.

25413051220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78000 (or 77998 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 25413051220 its reverse (2215031452), we get a palindrome (27628082672).

The spelling of 25413051220 in words is "twenty-five billion, four hundred thirteen million, fifty-one thousand, two hundred twenty".