25403461 has 2 divisors, whose sum is σ = 25403462. Its totient is φ = 25403460.

The previous prime is 25403407. The next prime is 25403473. The reversal of 25403461 is 16430452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17388900 + 8014561 = 4170^2 + 2831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25403461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25403401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12701730 + 12701731.

It is an arithmetic number, because the mean of its divisors is an integer number (12701731).

Almost surely, 2^25403461 is an apocalyptic number.

It is an amenable number.

25403461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25403461 is an equidigital number, since it uses as much as digits as its factorization.

25403461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 25403461 is about 5040.1846196345. The cubic root of 25403461 is about 293.9663566173.

The spelling of 25403461 in words is "twenty-five million, four hundred three thousand, four hundred sixty-one".