25066400 has 36 divisors (see below), whose sum is σ = 61195302. Its totient is φ = 10026240.

The previous prime is 25066361. The next prime is 25066409. The reversal of 25066400 is 466052.

It can be written as a sum of positive squares in 3 ways, for example, as 24482704 + 583696 = 4948^2 + 764^2 .

It is not an unprimeable number, because it can be changed into a prime (25066409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14867 + ... + 16466.

Almost surely, 2^25066400 is an apocalyptic number.

25066400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25066400 is an abundant number, since it is smaller than the sum of its proper divisors (36128902).

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

25066400 is a wasteful number, since it uses less digits than its factorization.

25066400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31353 (or 31340 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 25066400 is about 5006.6355968854. The cubic root of 25066400 is about 292.6604180070.

The spelling of 25066400 in words is "twenty-five million, sixty-six thousand, four hundred".