25025461 has 2 divisors, whose sum is σ = 25025462. Its totient is φ = 25025460.

The previous prime is 25025459. The next prime is 25025467. The reversal of 25025461 is 16452052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23571025 + 1454436 = 4855^2 + 1206^2 .

It is a cyclic number.

It is not a de Polignac number, because 25025461 - 2¹ = 25025459 is a prime.

Together with 25025459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25025467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12512730 + 12512731.

It is an arithmetic number, because the mean of its divisors is an integer number (12512731).

Almost surely, 2^25025461 is an apocalyptic number.

It is an amenable number.

25025461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25025461 is an equidigital number, since it uses as much as digits as its factorization.

25025461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 25025461 is about 5002.5454520674. The cubic root of 25025461 is about 292.5010046962.

The spelling of 25025461 in words is "twenty-five million, twenty-five thousand, four hundred sixty-one".