25410420 has 216 divisors, whose sum is σ = 93117024. Its totient is φ = 5588352.

The previous prime is 25410419. The next prime is 25410433. The reversal of 25410420 is 2401452.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 25410393 and 25410402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 379227 + ... + 379293.

Almost surely, 2^25410420 is an apocalyptic number.

25410420 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 25410420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46558512).

25410420 is an abundant number, since it is smaller than the sum of its proper divisors (67706604).

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

25410420 is a wasteful number, since it uses less digits than its factorization.

25410420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 25410420 is about 5040.8749240583. The cubic root of 25410420 is about 293.9931971215.

Adding to 25410420 its reverse (2401452), we get a palindrome (27811872).

The spelling of 25410420 in words is "twenty-five million, four hundred ten thousand, four hundred twenty".