25663051 has 8 divisors (see below), whose sum is σ = 25945920. Its totient is φ = 25382088.

The previous prime is 25663037. The next prime is 25663073. The reversal of 25663051 is 15036652.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25663051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25663151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54720 + ... + 55186.

It is an arithmetic number, because the mean of its divisors is an integer number (3243240).

Almost surely, 2^25663051 is an apocalyptic number.

25663051 is a deficient number, since it is larger than the sum of its proper divisors (282869).

25663051 is a wasteful number, since it uses less digits than its factorization.

25663051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 25663051 is about 5065.8711985205. The cubic root of 25663051 is about 294.9642818001.

The spelling of 25663051 in words is "twenty-five million, six hundred sixty-three thousand, fifty-one".