25117039 has 2 divisors, whose sum is σ = 25117040. Its totient is φ = 25117038.

The previous prime is 25117021. The next prime is 25117061. The reversal of 25117039 is 93071152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25117039 - 2⁷ = 25116911 is a prime.

It is a super-3 number, since 3×25117039³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25116998 and 25117016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25117019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12558519 + 12558520.

It is an arithmetic number, because the mean of its divisors is an integer number (12558520).

Almost surely, 2^25117039 is an apocalyptic number.

25117039 is a deficient number, since it is larger than the sum of its proper divisors (1).

25117039 is an equidigital number, since it uses as much as digits as its factorization.

25117039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 25117039 is about 5011.6902338433. The cubic root of 25117039 is about 292.8573624202.

The spelling of 25117039 in words is "twenty-five million, one hundred seventeen thousand, thirty-nine".