25070047 has 4 divisors (see below), whose sum is σ = 25140240. Its totient is φ = 24999856.

The previous prime is 25070039. The next prime is 25070057. The reversal of 25070047 is 74007052.

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 25070047 - 2³ = 25070039 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 (25070057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34558 + ... + 35275.

It is an arithmetic number, because the mean of its divisors is an integer number (6285060).

Almost surely, 2^25070047 is an apocalyptic number.

25070047 is a deficient number, since it is larger than the sum of its proper divisors (70193).

25070047 is an equidigital number, since it uses as much as digits as its factorization.

25070047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70192.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 25070047 is about 5006.9998002796. Note that the first 3 decimals coincide. The cubic root of 25070047 is about 292.6746107217.

Adding to 25070047 its reverse (74007052), we get a palindrome (99077099).

The spelling of 25070047 in words is "twenty-five million, seventy thousand, forty-seven".