25051663 has 16 divisors (see below), whose sum is σ = 31345216. Its totient is φ = 19491840.

The previous prime is 25051661. The next prime is 25051687. The reversal of 25051663 is 36615052.

It is a cyclic number.

It is not a de Polignac number, because 25051663 - 2¹ = 25051661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25051661) 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 15 ways as a sum of consecutive naturals, for example, 3295 + ... + 7807.

It is an arithmetic number, because the mean of its divisors is an integer number (1959076).

Almost surely, 2^25051663 is an apocalyptic number.

25051663 is a deficient number, since it is larger than the sum of its proper divisors (6293553).

25051663 is a wasteful number, since it uses less digits than its factorization.

25051663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594.

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

The square root of 25051663 is about 5005.1636336887. The cubic root of 25051663 is about 292.6030532734.

The spelling of 25051663 in words is "twenty-five million, fifty-one thousand, six hundred sixty-three".