25461563 has 8 divisors (see below), whose sum is σ = 27061632. Its totient is φ = 23872896.

The previous prime is 25461551. The next prime is 25461589. The reversal of 25461563 is 36516452.

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

It is a de Polignac number, because none of the positive numbers 2^k-25461563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25461503) 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 in 7 ways as a sum of consecutive naturals, for example, 2006 + ... + 7412.

It is an arithmetic number, because the mean of its divisors is an integer number (3382704).

Almost surely, 2^25461563 is an apocalyptic number.

25461563 is a deficient number, since it is larger than the sum of its proper divisors (1600069).

25461563 is a wasteful number, since it uses less digits than its factorization.

25461563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5701.

The product of its digits is 21600, while the sum is 32.

The square root of 25461563 is about 5045.9452038246. The cubic root of 25461563 is about 294.1903028496.

The spelling of 25461563 in words is "twenty-five million, four hundred sixty-one thousand, five hundred sixty-three".