25054561 has 8 divisors (see below), whose sum is σ = 28664064. Its totient is φ = 21452640.

The previous prime is 25054537. The next prime is 25054571. The reversal of 25054561 is 16545052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25054561 - 2¹¹ = 25052513 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25054501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12141 + ... + 14053.

It is an arithmetic number, because the mean of its divisors is an integer number (3583008).

Almost surely, 2^25054561 is an apocalyptic number.

It is an amenable number.

25054561 is a deficient number, since it is larger than the sum of its proper divisors (3609503).

25054561 is a wasteful number, since it uses less digits than its factorization.

25054561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 25054561 is about 5005.4531263413. The cubic root of 25054561 is about 292.6143357041.

The spelling of 25054561 in words is "twenty-five million, fifty-four thousand, five hundred sixty-one".