25450554103420 has 12 divisors (see below), whose sum is σ = 53446163617224. Its totient is φ = 10180221641360.

The previous prime is 25450554103411. The next prime is 25450554103451. The reversal of 25450554103420 is 2430145505452.

It is a super-2 number, since 2×25450554103420² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636263852566 + ... + 636263852605.

It is an arithmetic number, because the mean of its divisors is an integer number (4453846968102).

Almost surely, 2^{25450554103420} is an apocalyptic number.

25450554103420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25450554103420 is an abundant number, since it is smaller than the sum of its proper divisors (27995609513804).

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

25450554103420 is a wasteful number, since it uses less digits than its factorization.

25450554103420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272527705180 (or 1272527705178 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 25450554103420 its reverse (2430145505452), we get a palindrome (27880699608872).

The spelling of 25450554103420 in words is "twenty-five trillion, four hundred fifty billion, five hundred fifty-four million, one hundred three thousand, four hundred twenty".