25503461 has 2 divisors, whose sum is σ = 25503462. Its totient is φ = 25503460.

The previous prime is 25503449. The next prime is 25503479. The reversal of 25503461 is 16430552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25502500 + 961 = 5050^2 + 31^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25503461 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25503461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25503431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12751730 + 12751731.

It is an arithmetic number, because the mean of its divisors is an integer number (12751731).

Almost surely, 2^25503461 is an apocalyptic number.

It is an amenable number.

25503461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25503461 is an equidigital number, since it uses as much as digits as its factorization.

25503461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 25503461 is about 5050.0951476185. The cubic root of 25503461 is about 294.3515816436.

The spelling of 25503461 in words is "twenty-five million, five hundred three thousand, four hundred sixty-one".