25620466 has 8 divisors (see below), whose sum is σ = 38471004. Its totient is φ = 12796800.

The previous prime is 25620461. The next prime is 25620473. The reversal of 25620466 is 66402652.

It can be written as a sum of positive squares in 2 ways, for example, as 24216241 + 1404225 = 4921^2 + 1185^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25620461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4135 + ... + 8266.

Almost surely, 2^25620466 is an apocalyptic number.

25620466 is a deficient number, since it is larger than the sum of its proper divisors (12850538).

25620466 is a wasteful number, since it uses less digits than its factorization.

25620466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13436.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 25620466 is about 5061.6663264186. Note that the first 3 decimals coincide. The cubic root of 25620466 is about 294.8010379176.

The spelling of 25620466 in words is "twenty-five million, six hundred twenty thousand, four hundred sixty-six".