25097145 has 16 divisors (see below), whose sum is σ = 40447680. Its totient is φ = 13287744.

The previous prime is 25097131. The next prime is 25097147. The reversal of 25097145 is 54179052.

It is not a de Polignac number, because 25097145 - 2¹¹ = 25095097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25097147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3934 + ... + 8103.

It is an arithmetic number, because the mean of its divisors is an integer number (2527980).

Almost surely, 2^25097145 is an apocalyptic number.

It is an amenable number.

25097145 is a deficient number, since it is larger than the sum of its proper divisors (15350535).

25097145 is a wasteful number, since it uses less digits than its factorization.

25097145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12184.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 25097145 is about 5009.7050811400. The cubic root of 25097145 is about 292.7800225814.

The spelling of 25097145 in words is "twenty-five million, ninety-seven thousand, one hundred forty-five".