25001420 has 24 divisors (see below), whose sum is σ = 52642464. Its totient is φ = 9974016.

The previous prime is 25001401. The next prime is 25001453. The reversal of 25001420 is 2410052.

It is a junction number, because it is equal to n+sod(n) for n = 25001395 and 25001404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7217 + ... + 10103.

It is an arithmetic number, because the mean of its divisors is an integer number (2193436).

Almost surely, 2^25001420 is an apocalyptic number.

25001420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25001420 is an abundant number, since it is smaller than the sum of its proper divisors (27641044).

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

25001420 is a wasteful number, since it uses less digits than its factorization.

25001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329 (or 3327 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 25001420 is about 5000.1419979837. The cubic root of 25001420 is about 292.4073098567.

Adding to 25001420 its reverse (2410052), we get a palindrome (27411472).

The spelling of 25001420 in words is "twenty-five million, one thousand, four hundred twenty".