25049505 has 32 divisors (see below), whose sum is σ = 45440640. Its totient is φ = 11681280.

The previous prime is 25049503. The next prime is 25049537. The reversal of 25049505 is 50594052.

It is a happy number.

It is not a de Polignac number, because 25049505 - 2¹ = 25049503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25049503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325 + ... + 7085.

It is an arithmetic number, because the mean of its divisors is an integer number (1420020).

Almost surely, 2^25049505 is an apocalyptic number.

It is an amenable number.

25049505 is a deficient number, since it is larger than the sum of its proper divisors (20391135).

25049505 is a wasteful number, since it uses less digits than its factorization.

25049505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6801.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 25049505 is about 5004.9480516785. The cubic root of 25049505 is about 292.5946512295.

The spelling of 25049505 in words is "twenty-five million, forty-nine thousand, five hundred five".