25075947 has 8 divisors (see below), whose sum is σ = 36006544. Its totient is φ = 15431328.

The previous prime is 25075927. The next prime is 25075949. The reversal of 25075947 is 74957052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25075947 - 2¹¹ = 25073899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 642973 = 25075947 / (2 + 5 + 0 + 7 + 5 + 9 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25075949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321448 + ... + 321525.

It is an arithmetic number, because the mean of its divisors is an integer number (4500818).

Almost surely, 2^25075947 is an apocalyptic number.

25075947 is a deficient number, since it is larger than the sum of its proper divisors (10930597).

25075947 is a wasteful number, since it uses less digits than its factorization.

25075947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642989.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 25075947 is about 5007.5889407978. The cubic root of 25075947 is about 292.6975683273.

The spelling of 25075947 in words is "twenty-five million, seventy-five thousand, nine hundred forty-seven".