25056545 has 16 divisors (see below), whose sum is σ = 31974912. Its totient is φ = 18807360.

The previous prime is 25056541. The next prime is 25056547. The reversal of 25056545 is 54565052.

It is not a de Polignac number, because 25056545 - 2² = 25056541 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 (25056541) 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 15 ways as a sum of consecutive naturals, for example, 4040 + ... + 8150.

It is an arithmetic number, because the mean of its divisors is an integer number (1998432).

Almost surely, 2^25056545 is an apocalyptic number.

It is an amenable number.

25056545 is a deficient number, since it is larger than the sum of its proper divisors (6918367).

25056545 is a wasteful number, since it uses less digits than its factorization.

25056545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 25056545 is about 5005.6513062737. The cubic root of 25056545 is about 292.6220592681.

The spelling of 25056545 in words is "twenty-five million, fifty-six thousand, five hundred forty-five".