25043420 has 24 divisors (see below), whose sum is σ = 53106144. Its totient is φ = 9919296.

The previous prime is 25043419. The next prime is 25043437. The reversal of 25043420 is 2434052.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 25043392 and 25043401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4019 + ... + 8138.

It is an arithmetic number, because the mean of its divisors is an integer number (2212756).

Almost surely, 2^25043420 is an apocalyptic number.

25043420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25043420 is an abundant number, since it is smaller than the sum of its proper divisors (28062724).

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

25043420 is a wasteful number, since it uses less digits than its factorization.

25043420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12269 (or 12267 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 25043420 is about 5004.3401163390. The cubic root of 25043420 is about 292.5709570468.

Adding to 25043420 its reverse (2434052), we get a palindrome (27477472).

The spelling of 25043420 in words is "twenty-five million, forty-three thousand, four hundred twenty".