25115011 has 4 divisors (see below), whose sum is σ = 26206992. Its totient is φ = 24023032.

The previous prime is 25115009. The next prime is 25115023. The reversal of 25115011 is 11051152.

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 25115011 - 2¹ = 25115009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25115071) 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, 545956 + ... + 546001.

It is an arithmetic number, because the mean of its divisors is an integer number (6551748).

Almost surely, 2^25115011 is an apocalyptic number.

25115011 is a deficient number, since it is larger than the sum of its proper divisors (1091981).

25115011 is a wasteful number, since it uses less digits than its factorization.

25115011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091980.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 25115011 is about 5011.4879028089. The cubic root of 25115011 is about 292.8494802448.

Adding to 25115011 its reverse (11051152), we get a palindrome (36166163).

The spelling of 25115011 in words is "twenty-five million, one hundred fifteen thousand, eleven".