25366420 has 24 divisors (see below), whose sum is σ = 53530848. Its totient is φ = 10096800.

The previous prime is 25366409. The next prime is 25366421. The reversal of 25366420 is 2466352.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25366421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215 + ... + 7225.

It is an arithmetic number, because the mean of its divisors is an integer number (2230452).

Almost surely, 2^25366420 is an apocalyptic number.

25366420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25366420 is an abundant number, since it is smaller than the sum of its proper divisors (28164428).

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

25366420 is a wasteful number, since it uses less digits than its factorization.

25366420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6231 (or 6229 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 25366420 is about 5036.5087113992. The cubic root of 25366420 is about 293.8234088452.

The spelling of 25366420 in words is "twenty-five million, three hundred sixty-six thousand, four hundred twenty".