25456066 has 4 divisors (see below), whose sum is σ = 38184102. Its totient is φ = 12728032.

The previous prime is 25456019. The next prime is 25456069. The reversal of 25456066 is 66065452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16281225 + 9174841 = 4035^2 + 3029^2 .

It is a super-2 number, since 2×25456066² = 1296022592392712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25456069) 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 as a sum of consecutive naturals, namely, 6364015 + ... + 6364018.

Almost surely, 2^25456066 is an apocalyptic number.

25456066 is a deficient number, since it is larger than the sum of its proper divisors (12728036).

25456066 is a wasteful number, since it uses less digits than its factorization.

25456066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12728035.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 25456066 is about 5045.4004796448. The cubic root of 25456066 is about 294.1691300137.

The spelling of 25456066 in words is "twenty-five million, four hundred fifty-six thousand, sixty-six".