25625545 has 16 divisors (see below), whose sum is σ = 35520768. Its totient is φ = 17539840.

The previous prime is 25625527. The next prime is 25625581. The reversal of 25625545 is 54552652.

It is not a de Polignac number, because 25625545 - 2⁵ = 25625513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25625545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12769 + ... + 14638.

It is an arithmetic number, because the mean of its divisors is an integer number (2220048).

Almost surely, 2^25625545 is an apocalyptic number.

It is an amenable number.

25625545 is a deficient number, since it is larger than the sum of its proper divisors (9895223).

25625545 is a wasteful number, since it uses less digits than its factorization.

25625545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27440.

The product of its digits is 60000, while the sum is 34.

The square root of 25625545 is about 5062.1680138059. The cubic root of 25625545 is about 294.8205170786.

The spelling of 25625545 in words is "twenty-five million, six hundred twenty-five thousand, five hundred forty-five".