25053109 has 6 divisors (see below), whose sum is σ = 25437174. Its totient is φ = 24674760.

The previous prime is 25053103. The next prime is 25053113. The reversal of 25053109 is 90135052.

It can be written as a sum of positive squares in only one way, i.e., 19554084 + 5499025 = 4422^2 + 2345^2 .

It is not a de Polignac number, because 25053109 - 2³ = 25053101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25053101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1699 + ... + 7279.

It is an arithmetic number, because the mean of its divisors is an integer number (4239529).

Almost surely, 2^25053109 is an apocalyptic number.

It is an amenable number.

25053109 is a deficient number, since it is larger than the sum of its proper divisors (384065).

25053109 is an frugal number, since it uses more digits than its factorization.

25053109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5715 (or 5648 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 25053109 is about 5005.3080824261. The cubic root of 25053109 is about 292.6086829180.

The spelling of 25053109 in words is "twenty-five million, fifty-three thousand, one hundred nine".