25502461 has 4 divisors (see below), whose sum is σ = 25544412. Its totient is φ = 25460512.

The previous prime is 25502459. The next prime is 25502467. The reversal of 25502461 is 16420552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12040900 + 13461561 = 3470^2 + 3669^2 .

It is a cyclic number.

It is not a de Polignac number, because 25502461 - 2¹ = 25502459 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 (25502467) 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 3 ways as a sum of consecutive naturals, for example, 20050 + ... + 21283.

It is an arithmetic number, because the mean of its divisors is an integer number (6386103).

Almost surely, 2^25502461 is an apocalyptic number.

It is an amenable number.

25502461 is a deficient number, since it is larger than the sum of its proper divisors (41951).

25502461 is an equidigital number, since it uses as much as digits as its factorization.

25502461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41950.

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

The square root of 25502461 is about 5049.9961386124. The cubic root of 25502461 is about 294.3477343823.

The spelling of 25502461 in words is "twenty-five million, five hundred two thousand, four hundred sixty-one".