25072347 has 16 divisors (see below), whose sum is σ = 34670592. Its totient is φ = 16103520.

The previous prime is 25072337. The next prime is 25072349. The reversal of 25072347 is 74327052.

It is not a de Polignac number, because 25072347 - 2⁶ = 25072283 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (25072349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10822 + ... + 12932.

It is an arithmetic number, because the mean of its divisors is an integer number (2166912).

Almost surely, 2^25072347 is an apocalyptic number.

25072347 is a deficient number, since it is larger than the sum of its proper divisors (9598245).

25072347 is a wasteful number, since it uses less digits than its factorization.

25072347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 25072347 is about 5007.2294734713. The cubic root of 25072347 is about 292.6835607251.

Adding to 25072347 its reverse (74327052), we get a palindrome (99399399).

The spelling of 25072347 in words is "twenty-five million, seventy-two thousand, three hundred forty-seven".