25105051 has 4 divisors (see below), whose sum is σ = 25213032. Its totient is φ = 24997072.

The previous prime is 25105049. The next prime is 25105057. The reversal of 25105051 is 15050152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25105051 - 2¹ = 25105049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25105057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53641 + ... + 54106.

It is an arithmetic number, because the mean of its divisors is an integer number (6303258).

Almost surely, 2^25105051 is an apocalyptic number.

25105051 is a deficient number, since it is larger than the sum of its proper divisors (107981).

25105051 is a wasteful number, since it uses less digits than its factorization.

25105051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107980.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 25105051 is about 5010.4940874129. The cubic root of 25105051 is about 292.8107628090.

The spelling of 25105051 in words is "twenty-five million, one hundred five thousand, fifty-one".