25626461 has 6 divisors (see below), whose sum is σ = 29810430. Its totient is φ = 21965496.

The previous prime is 25626449. The next prime is 25626487. The reversal of 25626461 is 16462652.

It can be written as a sum of positive squares in only one way, i.e., 20702500 + 4923961 = 4550^2 + 2219^2 .

It is not a de Polignac number, because 25626461 - 2²² = 21432157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25626061) 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 5 ways as a sum of consecutive naturals, for example, 261446 + ... + 261543.

It is an arithmetic number, because the mean of its divisors is an integer number (4968405).

Almost surely, 2^25626461 is an apocalyptic number.

It is an amenable number.

25626461 is a deficient number, since it is larger than the sum of its proper divisors (4183969).

25626461 is an equidigital number, since it uses as much as digits as its factorization.

25626461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523003 (or 522996 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 25626461 is about 5062.2584880664. The cubic root of 25626461 is about 294.8240298803.

The spelling of 25626461 in words is "twenty-five million, six hundred twenty-six thousand, four hundred sixty-one".