25070039 has 2 divisors, whose sum is σ = 25070040. Its totient is φ = 25070038.

The previous prime is 25070009. The next prime is 25070057. The reversal of 25070039 is 93007052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25070039 - 2²⁰ = 24021463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25070009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12535019 + 12535020.

It is an arithmetic number, because the mean of its divisors is an integer number (12535020).

Almost surely, 2^25070039 is an apocalyptic number.

25070039 is a deficient number, since it is larger than the sum of its proper divisors (1).

25070039 is an equidigital number, since it uses as much as digits as its factorization.

25070039 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 26.

The square root of 25070039 is about 5006.9990013979. Note that the first 3 decimals coincide. The cubic root of 25070039 is about 292.6745795902.

The spelling of 25070039 in words is "twenty-five million, seventy thousand, thirty-nine".