25632461 has 2 divisors, whose sum is σ = 25632462. Its totient is φ = 25632460.

The previous prime is 25632457. The next prime is 25632469. The reversal of 25632461 is 16423652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19307236 + 6325225 = 4394^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 25632461 - 2² = 25632457 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25632469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12816230 + 12816231.

It is an arithmetic number, because the mean of its divisors is an integer number (12816231).

Almost surely, 2^25632461 is an apocalyptic number.

It is an amenable number.

25632461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25632461 is an equidigital number, since it uses as much as digits as its factorization.

25632461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 25632461 is about 5062.8510742466. The cubic root of 25632461 is about 294.8470374289.

The spelling of 25632461 in words is "twenty-five million, six hundred thirty-two thousand, four hundred sixty-one".